A material level indicator

Abstract

The present invention discloses a material level indicator, including a material pendulum, a main shaft, a sealing ring, a compression nut, a mechanical seal for a pump, a mechanical seal seat, an upper bearing seat, a deep groove ball bearing, a bracket, a fixing plate, a circular countersunk strong magnet, a box, a rotating plate, a sleeve, an angular displacement valve position transmitter and a bottom plate, wherein the bracket includes a connecting plate, a supporting cylinder and a cylinder, wherein the connecting plate is arranged on the bottom wall of the supporting cylinder, the cylinder is through-arranged on the upper end of the supporting cylinder, the supporting cylinder and the cylinder are integrally formed, the sleeve is arranged on the upper end of the cylinder, the upper bearing seat is arranged on the inner wall of the upper end of the cylinder, the mechanical seal seat is arranged on the inner wall of the lower end opening of the sleeve, and the deep groove ball bearing is arranged between the upper bearing seat and the mechanical seal seat. The present invention belongs to the technical field of grain and oil equipment, and specifically provides a material level indicator that automatically detects the material level in a silo, has a high degree of automation, has a good sealing effect, has a long service life, and can effectively prevent the leakage of solvent gas in the cylinder of a degassing machine.

Description

Technical Field

[0001] The invention belongs to the technical field of grain and oil equipment, and specifically refers to a material level indicator. Background Art

[0002] Level indicators are widely used in grain and oil equipment. They are mainly used for automatic detection and control of the limit levels of various material silos on equipment such as degassing machines and steam frying pans. Different types of level indicators can meet the requirements of different working conditions. They are widely used in the material transportation and control processes of various industries such as metallurgy, grain, flour, building materials, cement, electricity, coal, chemicals, casting, rubber, and environmental protection dust removal.

[0003] The most commonly used material level indicator in the prior art is composed of a pointer, an indicator plate, a bearing with a seat, a gland, a filler, a device barrel, a support, a main shaft, a material swing assembly and other parts. The pointer and the material swing assembly are fixed on the main shaft, the indicator plate is fixed on the support, and the support and the device barrel are fixed to the specified position of the device by welding. When the material level indicator is used, when the material in the silo reaches a certain height, it will push the material swing assembly to rotate, thereby driving the pointer to swing. The indicator plate is engraved with an angle. By checking the angle between the pointer and the indicator plate, the height of the material can be seen, so that the material feed speed can be adjusted to achieve the purpose of controlling the material level.

[0004] The commonly used material level indicators are simple in structure and single in function. They can only detect the height of the material in the silo. To achieve the purpose of controlling the material level height, it is necessary to manually control the feeding and discharging of the material, which adds a lot of burden to the manpower and cannot realize the automatic control of the equipment. The existing material level indicator adopts packing seal at the contact between the support and the main shaft. Because the degassing machine contains a large amount of high-temperature solvent gas, the packing is not ideally sealed under high temperature and high pressure, which is easy to cause leakage of solvent gas and pollute the environment. Summary of the invention

[0005] In order to solve the above-mentioned existing problems, the present invention provides a material level indicator which is highly practical, can automatically detect the material level in the silo, has a high degree of automation, uses a pump mechanical seal, has a good sealing effect under high temperature and high pressure, has a long service life, and can effectively prevent the leakage of solvent gas in the degassing machine cylinder.

[0006] The technical solution adopted by the present invention is as follows: the material level indicator of the present invention includes a material pendulum, a main shaft, a sealing ring, a clamping nut, a mechanical seal for a pump, a mechanical seal seat, an upper bearing seat, a deep groove ball bearing, a bracket, a fixing plate, a circular countersunk strong magnet, a box body, a rotating plate, a sleeve, an angular displacement valve position transmitter and a bottom plate, the bracket includes a connecting plate, a supporting cylinder and a cylinder body, the connecting plate is arranged on the bottom wall of the supporting cylinder, the supporting cylinder is a hollow cavity with an opening at the lower end, the cylinder body is through-arranged at the upper end of the supporting cylinder, the cylinder body is a hollow cavity through-arranged from top to bottom, the supporting cylinder and the cylinder body are integrally formed, and the sleeve is arranged at the upper end of the cylinder body. The sleeve is a hollow cavity that runs through from top to bottom. The upper bearing seat is arranged on the inner wall of the upper end of the cylinder. The mechanical seal seat is arranged on the inner wall of the lower end opening of the sleeve. The mechanical seal seat is arranged above the upper bearing seat. The lower wall of the mechanical seal seat is provided with a sealing flange. The sealing flange is arranged between the sleeve and the cylinder. The sealing flange is fixed between the sleeve and the cylinder by a fixed connection between the sleeve and the cylinder to achieve the fixation of the mechanical seal seat. The deep groove ball bearing is arranged between the upper bearing seat and the mechanical seal seat. The deep groove ball bearing facilitates relative changes between the mechanical seal seat and the upper bearing seat, thereby reducing the friction resistance between the mechanical seal seat and the upper bearing seat. The lower end opening of the cylinder is provided with a lower bearing seat, the main shaft rotates and penetrates the upper bearing seat and the lower bearing seat, the main shaft rotates and is arranged in the bracket through the upper bearing seat and the lower bearing seat, the pump mechanical seal is arranged in the sleeve and above the mechanical seal seat, because the evaporator contains a lot of high-temperature solvent gas, the pump mechanical seal has a good sealing effect under high temperature and high pressure, and has a long service life, can effectively prevent gas leakage in the cylinder, the clamping nut is arranged on the pump mechanical seal, the clamping nut is used to fix the pump mechanical seal to prevent it from falling off, and the pump mechanical seal can be tightened by tightening the nut The sealing effect of the seal reaches the optimal effect. The sealing ring is arranged at the top of the sleeve. The upper end of the main shaft passes through the mechanical seal seat, the mechanical seal for the pump, the clamping nut and the sealing ring are arranged outside the bracket in sequence. The material pendulum is arranged at the upper end of the main shaft. One end of the fixed plate is arranged at the lower end of the main shaft. The circular countersunk strong magnet is arranged at the end of the fixed plate away from the main shaft. The lower wall of the end of the fixed plate away from the main shaft is provided with multiple groups of circular countersunk strong magnets. The multiple circular countersunk strong magnets are fixed to the main shaft through the fixed plate. When the material pendulum rotates, the material pendulum drives the main shaft to rotate, and the main shaft drives the fixed plate and the circular countersunk strong magnet to swing together.The box body is arranged on a side wall of the supporting cylinder away from the cylinder body, the bottom plate is arranged on a side wall of the box body away from the supporting cylinder, the rotating plate is arranged in the box body, the angular displacement valve position transmitter is arranged on the lower wall of the rotating plate, the angular displacement valve position transmitter is fixed in the box body through the rotating plate, the box body is used to store the angular displacement valve position transmitter, the angular displacement valve position transmitter is provided with a feedback rod, and the feedback rod is provided with a plurality of groups of feedback circular countersunk hole strong magnets. When the material pendulum rotates, the circular countersunk hole strong magnet drives the feedback circular countersunk hole strong magnet to rotate through the magnetic force through the box body, and the feedback circular countersunk hole strong magnet drives the feedback rod to rotate the same angle, so that the angular displacement valve position transmitter can detect the rotation angle of the material pendulum by detecting the rotation angle of the feedback rod. The angular displacement valve position transmitter is electrically connected to the control room, and the current value changes proportionally according to the position change of the feedback rod, and is finally transmitted to the control room. ;

[0007] Furthermore, a connecting flange is provided at the opening of the upper end of the cylinder, an equipment flange is provided at the lower end of the sleeve, a rubber gasket is provided on the bottom wall of the sealing flange, and connecting bolts are penetrated through the connecting flange, the sealing flange and the equipment flange. The connecting flange and the equipment flange fix the cylinder and the sleeve together through the connecting bolts and fix and seal the sealing flange and the rubber gasket between the connecting flange and the equipment flange to achieve a sealed connection between the cylinder and the sleeve. At the same time, the connecting flange and the equipment flange are used to facilitate fixing the material level indicator at a specified position of the equipment, and the bolt connection facilitates disassembly.

[0008] Furthermore, a sealing plate is provided between the box body and the supporting cylinder, and the sealing plate divides the lower part of the entire material level indicator into two independent box bodies.

[0009] Furthermore, the rotating plate is connected to the box body by screws, and the position of the rotating plate can be freely adjusted.

[0010] Furthermore, a rubber pad five is provided between the bottom plate and the box body, a rubber pad four is provided between the sealing plate and the side wall of the box body, a rubber pad three is provided between the sealing plate and the support tube, and rubber pad three and rubber pad four seal the gaps between the sealing plate and the side wall of the box body and between the sealing plate and the support tube, thereby completely separating the box body and the support tube into two sealed cavities. A rubber pad two is provided between the lower bearing seat and the side wall of the support tube. Rubber pad two, rubber pad three, rubber pad four and rubber pad five increase the sealing performance of the device.

[0011] Furthermore, the bracket, material pendulum and box body are made of 304 stainless steel, which is strong, durable and has a long service life.

[0012] The beneficial effects achieved by the present invention using the above structure are as follows: the material level indicator of this scheme has a simple structure, reasonable design, and easy operation. A feedback circular countersunk strong magnet and a feedback circular countersunk strong magnet are provided to drive the feedback rod of the angular displacement valve position transmitter to rotate through magnetic force, thereby facilitating indirect and accurate detection of the material level, effectively isolating the angular displacement valve position transmitter from contact with the material, and protecting the angular displacement valve position transmitter from damage. The pump mechanical seal used has a good sealing effect under high temperature and high pressure, and has a long service life, and can effectively prevent the leakage of solvent gas in the cylinder of the degassing machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a cross-sectional view of the material level indicator of the present invention;

[0014] Figure 2 for Figure 1 A partial enlarged view of part A;

[0015] Figure 3 It is a structural schematic diagram of the material level indicator bracket of the present invention;

[0016] Figure 4 It is a schematic diagram of the structure of the angular displacement valve position transmitter of the material level indicator of the present invention;

[0017] Figure 5 It is a schematic diagram of the internal structure of the material level indicator box of the present invention.

[0018] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention. In the attached drawings: 1. material swing, 2. main shaft, 3. sealing ring, 4. sleeve, 5. locking nut, 6. mechanical seal for pump, 7. mechanical seal seat, 8. rubber pad one, 9. upper bearing seat, 10. deep groove ball bearing, 11. bracket, 12. rubber pad two, 13. lower bearing seat, 14. fixing plate, 15. circular countersunk strong magnet, 16. rubber pad three, 17. sealing plate, 18. rubber pad four, 19. box body, 20. rotating plate, 21. angular displacement valve position transmitter, 22. rubber pad five, 23. bottom plate, 24. equipment flange, 25. sealing flange, 26. feedback rod, 27. feedback circular countersunk strong magnet, 28. connecting flange, 29. connecting bolts, 30. screws, 32. connecting plate, 33. support cylinder, 34. cylinder body. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0020] like Figure 1-5 As shown, the material level indicator of the present invention includes a material pendulum 1, a main shaft 2, a sealing ring 3, a clamping nut 5, a pump mechanical seal 6, a mechanical seal seat 7, an upper bearing seat 9, a deep groove ball bearing 10, a bracket 11, a fixing plate 14, a circular countersunk strong magnet 15, a box body 19, a rotating plate 20, a sleeve 4, an angular displacement valve position transmitter 21 and a bottom plate 23. The bracket 11 includes a connecting plate 32, a supporting cylinder 33 and a cylinder body 34. The connecting plate 32 is arranged on the bottom wall of the supporting cylinder 33. The supporting cylinder 33 is a hollow cavity with an opening at the lower end. The cylinder body 34 is arranged through the upper end of the supporting cylinder 33. The cylinder 34 is a hollow cavity that passes through from top to bottom. The support cylinder 33 and the cylinder 34 are integrally formed. The sleeve 4 is arranged at the upper end of the cylinder 34. The sleeve 4 is a hollow cavity that passes through from top to bottom. The upper bearing seat 9 is arranged on the inner wall of the upper end of the cylinder 34. The mechanical seal seat 7 is arranged on the inner wall of the lower end opening of the sleeve 4. The mechanical seal seat 7 is arranged above the upper bearing seat 9. The lower wall of the mechanical seal seat 7 is provided with a sealing flange 25. The sealing flange 25 is arranged between the sleeve 4 and the cylinder 34. The deep groove ball bearing 10 is arranged between the upper bearing seat 9 and the mechanical seal seat 7. The lower end of the cylinder 34 A lower bearing seat 13 is provided at the opening, the main shaft 2 is rotatably penetrated in the upper bearing seat 9 and the lower bearing seat 13, the main shaft 2 is rotatably provided in the bracket 11 through the upper bearing seat 9 and the lower bearing seat 13, the pump mechanical seal 6 is provided in the sleeve 4 and above the mechanical seal seat 7, the clamping nut 5 is provided on the pump mechanical seal 6, the sealing ring 3 is provided on the top of the sleeve 4, the upper end of the main shaft 2 sequentially penetrates the mechanical seal seat 7, the pump mechanical seal 6, the clamping nut 5 and the sealing ring 3 are provided outside the bracket 11, the material pendulum 1 is provided at the upper end of the main shaft 2, and one end of the fixed plate 14 is provided on the main shaft 2, the circular countersunk strong magnet 15 is arranged at the end of the fixed plate 14 away from the main shaft 2, and the lower wall of the fixed plate 14 away from the main shaft 2 is provided with multiple groups of circular countersunk strong magnets 15; the box body 19 is arranged on the side wall of the support cylinder 33 away from the cylinder body 34, the bottom plate 23 is arranged on the side wall of the box body 19 away from the support cylinder 33, the rotating plate 20 is arranged in the box body 19, the angular displacement valve position transmitter 21 is arranged on the lower wall of the rotating plate 20, the angular displacement valve position transmitter 21 is provided with a feedback rod 26, and the feedback rod 26 is provided with multiple groups of feedback circular countersunk strong magnets 27.

[0021] Among them, a connecting flange 28 is provided at the opening of the upper end of the cylinder 34, an equipment flange 24 is provided at the lower end of the sleeve 4, a rubber pad 8 is provided on the bottom wall of the sealing flange 25, and connecting bolts 29 are penetrated through the connecting flange 28, the sealing flange 25 and the equipment flange 24; a sealing plate 17 is provided between the box body 19 and the support cylinder 33, and the rotating plate 20 is connected to the box body 19 by screws 30; a rubber pad 5 22 is provided between the bottom plate 23 and the box body 19, a rubber pad 4 18 is provided between the sealing plate 17 and the side wall of the box body 19, a rubber pad 3 16 is provided between the sealing plate 17 and the support cylinder 33, a rubber pad 2 12 is provided between the lower bearing seat 13 and the side wall of the support cylinder 33, and the bracket 11, the material pendulum 1 and the box body 19 are made of 304 stainless steel.

[0022] When in use, the material level indicator is fixed to the specified position of the equipment through the connecting flange 28, the equipment flange 24 and the connecting bolts 29. The material pendulum 1 corresponds to the upper limit position of the material level. When the material is higher than this position, it will push the material pendulum 1 to rotate. The rotation of the material pendulum 1 drives the main shaft 2 to rotate. The main shaft 2 drives the fixed plate 14 and the circular countersunk strong magnet 15 on the lower wall of the fixed plate 14 to rotate around the main shaft 2. The circular countersunk strong magnet 15 drives the feedback circular countersunk strong magnet 27 to rotate through the box body 19 through the magnetic effect. The feedback circular countersunk strong magnet 27 drives the feedback rod 26 to rotate the same angle, so that the angular displacement valve position transmitter 21 passes the detection The rotation angle of the feedback rod 26 can detect the rotation angle of the material pendulum 1. The angular displacement valve position transmitter 21 is electrically connected to the control room for loading and unloading materials. The current value changes proportionally according to the position change of the feedback rod 26, and is finally transmitted to the control room. The "empty" and "full" conditions of the materials in the silo are displayed on the simulation board in the control room, and a signal is given at the same time. The corresponding equipment is started through the control circuit, and the corresponding materials and silos are selected for loading, thereby achieving the purpose of automatic control. The pump mechanical seal 6 has a good sealing effect under high temperature and high pressure, and has a long service life, which can effectively prevent gas leakage in the cylinder 34.

[0023] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0024] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A material level indicator, characterized in that: It includes a material pendulum, a main shaft, a sealing ring, a locking nut, a mechanical seal for a pump, a mechanical seal seat, an upper bearing seat, a deep groove ball bearing, a bracket, a fixing plate, a round countersunk strong magnet, a box body, a rotating plate, a sleeve, an angular displacement valve position transmitter and a bottom plate. The bracket includes a connecting plate, a supporting cylinder and a cylinder body. The connecting plate is arranged on the bottom wall of the supporting cylinder. The supporting cylinder is a hollow cavity with an opening at the lower end. The cylinder body is through-arranged at the upper end of the supporting cylinder. The cylinder body is a hollow cavity through-through from top to bottom. The supporting cylinder and the cylinder body are arranged together. The sleeve is arranged at the upper end of the cylinder, and the sleeve is arranged as a hollow cavity that passes through from top to bottom. The upper bearing seat is arranged on the inner wall of the upper end of the cylinder, and the mechanical seal seat is arranged on the inner wall of the lower end opening of the sleeve. The mechanical seal seat is arranged above the upper bearing seat, and a sealing flange is arranged on the lower wall of the mechanical seal seat, and the sealing flange is arranged between the sleeve and the cylinder. The deep groove ball bearing is arranged between the upper bearing seat and the mechanical seal seat, and a lower bearing seat is arranged at the lower end opening of the cylinder. The main shaft rotates through the upper bearing seat and the lower In the bearing seat, the main shaft is rotatably arranged in the bracket through the upper bearing seat and the lower bearing seat, the pump mechanical seal is arranged in the sleeve and arranged above the mechanical seal seat, the clamping nut is arranged on the pump mechanical seal, the sealing ring is arranged on the top of the sleeve, the upper end of the main shaft passes through the mechanical seal seat, the pump mechanical seal, the clamping nut and the sealing ring in sequence and are arranged outside the bracket, the material pendulum is arranged at the upper end of the main shaft, one end of the fixed plate is arranged at the lower end of the main shaft, and the circular countersunk strong magnet is arranged at the end of the fixed plate away from the main shaft. A plurality of groups of circular countersunk strong magnets are provided on the lower wall of one end of the fixed plate away from the main shaft, the box body is provided on a side wall of the support tube away from the tube body, the bottom plate is provided on a side wall of the box body away from the support tube, the rotating plate is provided in the box body, the angular displacement valve position transmitter is provided on the lower wall of the rotating plate, the angular displacement valve position transmitter is provided with a feedback rod, and the feedback rod is provided with a plurality of groups of feedback circular countersunk strong magnets; a sealing plate is provided between the box body and the support tube; the bracket, material pendulum and box body are made of 304 stainless steel.

2. A material level indicator according to claim 1, characterized in that: A connecting flange is arranged at the opening of the upper end of the cylinder, an equipment flange is arranged at the lower end of the sleeve, a rubber gasket is arranged on the bottom wall of the sealing flange, and connecting bolts are penetrated through the connecting flange, the sealing flange and the equipment flange.

3. A material level indicator according to claim 1, characterized in that: The rotating plate is connected to the box body by screws.

4. A material level indicator according to claim 1, characterized in that: A rubber pad five is arranged between the bottom plate and the box body, a rubber pad four is arranged between the sealing plate and the side wall of the box body, a rubber pad three is arranged between the sealing plate and the support tube, and a rubber pad two is arranged between the lower bearing seat and the side wall of the support tube.

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