Schenk scale and weighing system

Abstract

The utility model discloses a Schenk scale and a weighing system, and relates to the Schenk scale reconstruction technology field, the Schenk scale mainly comprises a Schenk scale main body and a gas phase pipeline, and the gas phase pipeline is communicated with the Schenk scale main body and is used for balancing the internal pressure intensity and the atmospheric pressure intensity of the Schenk scale main body. The weighing system comprises a stock bin and the Schenk scale, a discharge port of the stock bin is communicated with a main body of the Schenk scale, and the stock bin is connected with a dust removal device. According to the utility model, the Schenk scale main body is communicated with the gas-phase pipeline, so that gas and dust with increased air pressure in the Schenk scale main body can be discharged through the gas-phase pipeline during material supplementation, and the air pressure in the Schenk scale main body is always in a normal state, so that the Schenk scale is more stable in use and more accurate in weighing; and meanwhile, the internal air pressure of the Schenk scale is in a normal state, so that the phenomenon of field dust emission caused by overhigh internal air pressure of the Schenk scale is avoided, and the environment is protected.

Description

Technical Field

[0001] The utility model relates to the technical field of Schenck scale transformation, in particular to a Schenck scale and a weighing system. Background Art

[0002] In the production of anhydrous hydrogen fluoride, the raw material is fluorite powder. After being measured by the Schenk scale, the fluorite powder is transported to the pre-reactor by a screw and enters the reactor for reaction. The ratio of the entire system is calculated based on the measurement of the Schenk scale to achieve the specified ratio.

[0003] The storage place of fluorite is fluorite silo. There is a bag dust collector on the top of the fluorite silo to filter the impact air pressure generated when fluorite enters the silo. There is a dust removal fan on the top of the bag dust collector. The inside of the fluorite silo is always in a negative pressure state, and no excess gas is generated, such as dust entering the silo, high-temperature materials, small water droplets condensed due to temperature changes, and gases generated during the material drying process, so there will be no dust. The fluorite silo is connected to the Schenck scale, with a pneumatic valve in the middle. The pneumatic valve is controlled by interlocking to replenish the material to achieve For production needs, under normal circumstances, the Schenck scale is connected to the silo with a feed pipe, and the feed pipe is flexibly connected to the Schenck scale through a flexible joint. When refilling, a large amount of material falls into the Schenck scale instantly, resulting in a positive pressure inside the Schenck scale, that is, the air pressure inside the Schenck scale is greater than the external atmospheric pressure, resulting in a larger reading on the Schenck scale. At the same time, due to the large amount of material falling, the internal air pressure of the Schenck scale changes significantly, resulting in serious fluctuations in the speed of the Schenck scale reading pointer, resulting in inaccurate weighing, and dust will also appear at the flexible connection, and the on-site environment is poor.

[0004] Patent CN213766511U discloses an exhaust device for a concrete mixing system powder silo weighing hopper, including a bend pipe whose first end is connected to the gas outlet of the weighing hopper through a flange and bolts, an exhaust bend pipe with a one-way exhaust valve whose first end is connected to the second end of the bend pipe through a flange and bolts, an ash guide pipe whose first end is connected to the exhaust bend pipe through a flange and bolts, and an ash receiving box whose ash receiving port is connected to the second end of the ash guide pipe through a flange and bolts. However, it is a separate exhaust device that uses an ordinary bend pipe with a one-way vent valve for exhaust, and the pressure cannot accurately achieve internal and external balance. Moreover, since the amount of material discharged each time is different, the amount of exhaust from the bend pipe will be different. The fluctuating exhaust volume makes it impossible for the ordinary bend pipe to achieve the effect of stabilizing the internal air pressure of the weighing hopper in real time. Dust will still occur at the flange connection, and the weighing device will still fluctuate greatly, resulting in inaccurate weighing.

[0005] Therefore, it is urgent to provide a Schenck scale and a weighing system to solve the above problems existing in the prior art. Utility Model Content

[0006] The purpose of the utility model is to provide a Schenck scale and weighing system to solve the problems existing in the above-mentioned prior art, so that the Schenck scale can be used more stably, the weighing can be more accurate, and there is no dust at the flexible connection, thereby protecting the environment.

[0007] To achieve the above purpose, the utility model provides the following solutions:

[0008] The utility model provides a Schenck scale, comprising a Schenck scale body and a gas phase pipeline. The gas phase pipeline is connected with the Schenck scale body and is used for balancing the internal pressure of the Schenck scale body and the atmospheric pressure.

[0009] Preferably, an opening is provided on the top of the Schenck scale body, and the opening is used to connect the gas phase pipeline.

[0010] Preferably, one end of the gas phase pipeline is connected to the Schenck scale body, and the other end is connected to the dust removal device.

[0011] The utility model also provides a weighing system, comprising a silo and the Schenck scale as described above, wherein a discharge port of the silo is communicated with a main body of the Schenck scale, and the silo is connected with a dust removal device.

[0012] Preferably, one end of the gas phase pipeline away from the Schenck scale body is connected to the dust removal device.

[0013] Preferably, the dust removal device comprises a dust collector and a dust removal fan, wherein the dust collector has an air inlet and an air outlet, and the dust removal fan is connected to the air outlet of the dust collector;

[0014] One end of the gas phase pipeline away from the Schenck scale body is communicated with the air inlet of the dust collector.

[0015] Preferably, the dust removal device is arranged at the top of the silo, and the air inlet of the dust removal device is connected to the top of the silo.

[0016] Preferably, the discharge port of the silo is connected to the Schenck scale body through a discharge pipe, and a valve is provided on the discharge pipe, and the valve is used to control the flow and suspension of the flow of materials.

[0017] Preferably, the valve is a pneumatic valve.

[0018] Preferably, it also includes a flexible joint, and the Schenck scale body is connected with the feed pipe through the flexible joint.

[0019] Compared with the prior art, the utility model has achieved the following technical effects:

[0020] The utility model discloses a Schenk scale body that is connected with a gas phase pipeline. When replenishing materials, the gas and dust that increase the internal air pressure of the Schenk scale body will be discharged through the gas phase pipeline, so that the internal air pressure of the Schenk scale body is always in a normal state, so that the use of the Schenk scale is more stable and the weighing is more accurate. At the same time, the internal air pressure of the Schenk scale is in a normal state, and dust will not appear on site due to excessive internal air pressure of the Schenk scale, thereby protecting the environment and avoiding the problems of inaccurate weighing and dust on site caused by unstable internal air pressure of the weighing device in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 This is a schematic diagram of a weighing system in an embodiment of the utility model;

[0023] In the figure: 1-dust removal fan; 2-dust collector; 3-gas phase pipeline; 4-silo; 5-flexible joint; 6-Schenck scale body; 7-valve; 8-discharge pipe. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] The purpose of the utility model is to provide a Schenck scale and weighing system to solve the problems existing in the above-mentioned prior art, so that the Schenck scale can be used more stably, the weighing can be more accurate, and there is no dust at the flexible connection, thereby protecting the environment.

[0026] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0027] Embodiment 1:

[0028] like Figure 1As shown, the utility model provides a Schenk scale, including a Schenk scale body 6 and a gas phase pipeline 3, the gas phase pipeline 3 is connected to the cavity of the Schenk scale body 6 (whether the connection position is required, on a specific component), and is used to balance the internal pressure of the Schenk scale body 6 with the atmospheric pressure. The Schenk scale body 6 is connected to the gas phase pipeline 3. When replenishing materials, the gas and dust that increase the internal air pressure of the Schenk scale body 6 will be discharged through the gas phase pipeline 3, and then the internal air pressure of the Schenk scale body 6 is always in a normal state, that is, it is always in a state of equilibrium with the external atmospheric pressure, and the internal air pressure will not fluctuate significantly, so that the use of the Schenk scale is more stable and the weighing is more accurate. At the same time, the internal air pressure of the Schenk scale body 6 is in a normal state, and there will be no dust emission from the flexible connection due to excessive internal air pressure of the Schenk scale, thereby protecting the environment.

[0029] In this embodiment, an opening is provided on the top of the Schenk scale body 6, and the opening is used to connect the gas phase pipeline 3. It should be noted that the opening can also be provided at other positions as long as the discharge of dust can be guaranteed, such as being provided on the side of the Schenk scale body 6. This technology is a mature prior art and will not be elaborated on here.

[0030] In this embodiment, one end of the gas phase pipeline 3 is connected to the Schenck scale body 6, and the other end is connected to the dust removal device, so that the dust inside the Schenck scale body 6 is discharged in time to protect the on-site environment.

[0031] Embodiment 2:

[0032] like Figure 1 As shown, the utility model also provides a weighing system, including a silo 4 and the Schenck scale as described above, the discharge port of the silo 4 is connected to the Schenck scale body 6, and the silo 4 is connected to a dust removal device. It should be noted that since the dust removal device discharges excess gas from the silo 4, the amount of gas inside the silo is small, so the internal air pressure of the silo 4 is lower than the external atmospheric pressure, which can prevent the internal dust from emitting along the joints, flanges or observation holes of the dust removal device and the silo 4.

[0033] In this embodiment, the end of the gas phase pipeline 3 away from the Schenk scale body 6 is connected to the dust removal device, and the dust inside the Schenk scale body 6 is directly connected to the dust removal device through the gas phase pipeline 3. The dust removal device filters the dust and then empties it for disposal, which fully utilizes the characteristics of the device. The dust removal device can absorb the dust discharged from the silo 4 and process the dust discharged from the inside of the Schenk scale body 6. One machine has multiple uses, saving resources and space. It should be noted that the end of the gas phase pipeline 3 away from the Schenk scale body 6 can also be connected to other dust removal devices, such as a separately arranged dust removal device, as long as the connected device can absorb and process the dust in the pipe.

[0034] In this embodiment, the dust removal device includes a dust collector 2 and a dust removal fan 1, wherein the dust collector 2 has an air inlet and an air outlet, and the dust removal fan 1 is connected to the air outlet of the dust collector 2. It should be noted that the dust removal device can also be other types of equipment capable of dust removal, such as a dust removal device with an integrated design;

[0035] One end of the gas phase pipeline 3 away from the Schenck scale body 6 is connected to the air inlet of the dust collector 2, so that the dust collector 2 can be used for multiple purposes and save resources.

[0036] In this embodiment, the dust removal device is arranged at the top of the silo 4, and the air inlet of the dust removal device is connected to the top of the silo 4. It should be noted that the dust removal device can also be arranged at other positions, such as at the upper side of the silo 4, as long as the dust inside the silo can be discharged.

[0037] In this embodiment, the discharge port of the silo 4 is connected to the Schenck scale body 6 through a discharge pipe 8, and a valve 7 is arranged on the discharge pipe 8. The valve 7 is a pneumatic valve. The valve 7 is used to control the flow and suspension of the material flow, and can control the flow state of the material at any time. The pneumatic valve has a faster response speed, a simple structure and a lower cost. It should be noted that the valve 7 can also adopt other types of valves, such as an electric valve, as long as it can control the flow and suspension of the material flow, and the position of the valve setting can also be changed, such as being set at the outlet of the silo.

[0038] In this embodiment, the weighing system also includes a flexible joint 5, and the Schenk scale body 6 is connected to the discharge pipe 8 through the flexible joint 5. The flexible joint 5 can reduce shock and noise and has high connection reliability, which can protect the stability of the Schenk scale body 6. It should be noted that the flexible joint can also be replaced with other types of joints as long as the connection between the Schenk scale body and the discharge pipe can be achieved, such as a rigid joint.

[0039] The present invention uses specific examples to illustrate the principle and implementation of the present invention. The above examples are only used to help understand the method and core idea of ​​the present invention. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A Schenck scale, characterized in that: It comprises a Schenck scale body and a gas phase pipeline, wherein the gas phase pipeline is connected to the Schenck scale body and is used for balancing the internal pressure of the Schenck scale body with the atmospheric pressure.

2. The Schenck balance according to claim 1, characterized in that: An opening is arranged on the top of the Schenck balance body, and the opening is used for connecting the gas phase pipeline.

3. The Schenck balance according to claim 1, characterized in that: One end of the gas phase pipeline is connected to the Schenck scale body, and the other end is connected to the dust removal device.

4. A weighing system, characterized in that: It comprises a silo and the Schenck scale as claimed in claim 1 or 2, wherein the discharge port of the silo is communicated with the Schenck scale body, and the silo is connected with a dust removal device.

5. The weighing system according to claim 4, characterized in that: One end of the gas phase pipeline away from the Schenck scale body is connected to the dust removal device.

6. The weighing system according to claim 5, characterized in that: The dust removal device comprises a dust collector and a dust removal fan, wherein the dust collector has an air inlet and an air outlet, and the dust removal fan is connected to the air outlet of the dust collector; One end of the gas phase pipeline away from the Schenck scale body is communicated with the air inlet of the dust collector.

7. The weighing system according to claim 4, characterized in that: The dust removal device is arranged on the top of the silo, and the air inlet of the dust removal device is communicated with the top of the silo.

8. The weighing system according to claim 4, characterized in that: The discharge port of the silo is connected to the Schenck scale body through a discharge pipe, and a valve is arranged on the discharge pipe, and the valve is used to control the flow and suspension of the flow of materials.

9. The weighing system according to claim 8, characterized in that: The valve is a pneumatic valve.

10. The weighing system according to claim 8, characterized in that: It also includes a flexible joint, through which the Schenck scale body is connected with the feed pipe.

Images