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Manufacturing method of anti-twist device for Gravimetric blender bin


source:[Gravimetric blender]   release time:2021-05-12 09:52:35




In industrial production, due to production needs, the materials entering and leaving the silos and tanks need to be accurately weighed. For example, the pulverized coal silo and injection tank in the blast furnace coal injection system use electronic scales as blending devices to realize real-time monitoring of the amount of pulverized coal in the pulverized coal silo and injection tank. In order to ensure the accuracy of the blending of the electronic scale, the indenter of the electronic scale should only be affected by gravity, that is, the vertical force, to prevent the torsional shear force. However, due to the different loading volume of silos and tanks, the tank body may move up and down within a certain range, causing some silo troughs to be easily affected by material impact, uneven feeding, material segregation, and pressure relief gas impact. Deflection, torsion, and torsion moment are generated at the same time. Contents of the utility model The task of this utility model is to provide an anti-torsion device for blending bins, which solves the problem that the torsional shearing movement of bins, tanks and other material containers causes the electronic scale to be affected by the torsional shearing force. . The technical solution of the utility model is as follows-an anti-twist device for blending a silo, which includes a silo, a tank or a silo pump and a steel structure support, and also includes a blending device, the steel structure support and the silo The lower support and the upper support are installed between the lower support and the upper support, and the pin is installed in the middle position between the lower support and the upper support. Between the pin and the opening of the lower support and between the pin and the upper support opening There are gaps between them, and there is also a gap between the lower support and the upper support. In order to ensure that the tank body will not move in the horizontal direction, to prevent the increase of the blending error of the electronic scale due to the rotation of the silo and the tank, and even the damage or failure of the electronic scale. The utility model designs an anti-torsion device for blending bins, which is specially used to fix the positions between the supporting platform installation beams of material containers such as bins and tanks, and is used to restrict these containers from moving up and down in the vertical direction to prevent And resist the torsional shearing movement of these containers, so that the electronic scale is only subjected to vertical force, thus ensuring the accurate blending of the electronic scale. The feature of the anti-twist device of the blending bin of the utility model is that the anti-twist device is composed of an upper and a lower support and a pin. A certain gap is maintained between the upper and lower supports without contacting each other, and the gap is between When the container is full of materials, the distance is about 2mm. The upper and lower supports are connected by a pin, and the opening on the support and the pin form a loose restraint fit. The anti-twist device is equipped with a blending device, which is used to prevent the silo, the silo, and the silo-type pump silo from being disturbed to affect the accurate blending of the blending device. Using the anti-twist device of the blending bin of the utility model can prevent the electronic scale from being affected by the rotating torque and ensure the need for blending. The utility model has simple structure and low manufacturing cost, and is suitable for various containers such as troughs, tanks, and silos for installing blending devices.


Fig. 1 is a structural schematic diagram of an anti-twist device of a blending bin of the present invention. Fig. 2 is a cross-sectional view taken along line A-A in Fig. 1. Fig. 3 is a BB cross-sectional view in Fig. 2, which is a first installation embodiment. Fig. 4 is a BB cross-sectional view in Fig. 2, which is a second installation embodiment. Fig. 5 is a schematic diagram of the installation and use of the anti-twist device of Fig. 1.
Detailed ways
Referring to Figures 1 to 5, an anti-twist device for blending silo of the present invention includes a silo, a silo or a silo pump, and the steel structure support 5 of the silo, a silo or a silo pump. A blending device such as an electronic scale 6 is arranged on the structural support 5. The lower support 2 and the upper support 1 are arranged between the steel structure support 5 and the silo, and the silo is connected to the upper support 1 through the support ring 4. The upper support 1 is installed on the silo support ring 4 by welding, and the lower support 2 is also installed on the steel structure support 5 by welding. A pin 3 is installed in the middle between the lower support 2 and the upper support 1, and the pin 3 is inserted from the opening of the upper support 1 to the opening L of the lower support 2. The pin 3 is fixed by pins up and down, and can also be fixed in the form of bolts and nuts to prevent the pin 3 from falling off. There are many ways to fix the pin shaft, such as using a pin at the lower part of the pin shaft (as shown in the installation embodiment shown in Figure 3); another example is using a pin shaft with threads on the lower part and screwing on a nut for fixing ( The installation implementation shown in Figure 4). There are gaps between the pin 3 and the opening of the lower support 2 and between the pin 3 and the opening of the upper support 1, respectively. The gap between the pin 3 and the opening of the lower support 2 is 12mm, and the gap between the pin 3 and the opening of the upper support 1 is 12mm, so that the pin 3 and the support A loose restraint fit is formed between the openings. A gap is also provided between the lower support 2 and the upper support 1 without contacting each other. The gap between the lower support 2 and the upper support 1 during operation is about 2 mm. In other words, when the silo and tank are full of materials, the minimum distance between the upper and lower supports is about 2mm. The distance between the upper and lower supports can be determined according to the needs of the electronic blending device, and can be adjusted during installation to ensure that the distance between the upper and lower supports meets the needs of blending. The anti-twist device of the utility model is installed between the support ring of the spray tank and the steel structure platform. The installation quantity of the anti-twist device can be determined according to the volume of the silo and the tank and the density of the material contained. Generally, uniformly distributed Way to ensure that the force of each anti-torsion device is even. Of course, those skilled in the art should realize that the above-mentioned embodiments are only used to illustrate the present utility model, but not to limit the present utility model. As long as the above-mentioned implementation is within the scope of the essential spirit of the present utility model, The changes and modifications of the examples will fall within the scope of the claims of the present invention.
Claim 1. An anti-twist device for blending a silo, which includes a silo, a tank or a silo pump and a steel structure support, and also includes a blending device, characterized in that the steel structure support and the silo The lower support and the upper support are installed between the lower support and the upper support, the pin is installed in the middle position between the lower support and the upper support, between the pin and the opening of the lower support and between the pin and the opening of the upper support There are gaps respectively, and there is also a gap between the lower support and the upper support.
2. The anti-twist device of the blending bin according to claim 1, wherein the bin is connected to the upper support through a support ring.
3. The anti-twist device of the blending bin according to claim 2, wherein the upper support is installed on the bin support ring by welding.
4. The anti-twist device of the blending bin according to claim 1, wherein the lower support is installed on the steel structure support by welding.
5. The anti-twist device of the blending bin according to claim 1, wherein the gap provided between the pin and the opening of the lower support is 12 mm.
6. The anti-twist device of the blending bin according to claim 1, wherein the gap provided between the pin and the opening of the upper support is 12 mm.
7. The anti-twist device of the blending bin according to claim 1, wherein the gap between the lower support and the upper support during operation is 2 mm.

Patent Abstract The utility model relates to an anti-torsion device for a blending silo, which includes a silo, a steel structure support and a blending device. A lower support and an upper support are installed between the steel structure support and the silo. A pin is installed in the middle position between the lower support and the upper support. A gap is provided between the openings of the upper support, and a gap is also provided between the lower support and the upper support. The feature of the utility model is that the anti-twist device is composed of an upper and a lower support and a pin shaft. A certain gap is maintained between the upper and lower supports without contacting each other. The opening on the support is formed between the pin shaft Loose restraint fits. The anti-twist device is equipped with a blending device, which is used to prevent the silo, the silo, and the silo-type pump silo from being disturbed to affect the accurate blending of the blending device. The utility model has simple structure and low manufacturing cost, and is suitable for various containers such as troughs, tanks, and silos for installing blending devices.[Gravimetric blender]