Mixing station stock bin with pipe bag valve

Abstract

A mixing station stock bin with a pipe bag valve is structurally characterized in that a base station is arranged at the lower end of a material tank, a control unit comprises a control circuit, an electromagnetic valve and an air compressor, the electromagnetic valve and the air compressor are electrically connected with the control circuit, a dust remover is installed on the upper side of the base station, the dust remover is communicated with the upper portion of an inner cavity of the material tank in the circumferential direction, and the upper end of a feeding pipe is communicated with the upper portion of the inner cavity of the material tank. A safety valve and a pressure sensor electrically connected with a control circuit are arranged on the upper side of the charging bucket, an air pipe is arranged between the pipe bag valve and the air compressor, the electromagnetic valve is arranged in the air pipe, a pipe seat on the upper side of the charging bucket is communicated with the upper portion of an inner cavity of the charging bucket, and the pipe seat is connected with the level gage in an inserted mode through two fixing mechanisms and two limiting mechanisms. The safety valve has the advantages that even if the safety valve fails, potential safety hazards caused by abnormal pressure rise in the charging bucket can be prevented; the dismounting and mounting efficiency of the level gage is high; the dust remover does not need to be maintained at high altitude, and the dust remover is simple, convenient, safe and efficient to maintain; the risk of high-altitude maintenance operation is effectively reduced, and the hidden danger of safety production is eliminated.

Description

Technical Field

[0001] The utility model relates to the technical field of mixing station silos, in particular to a mixing station silo with a tube bag valve. Background Art

[0002] The mixing station silo is one of the key equipment for concrete production. The powder tank (or material tank) inside it is usually a steel structure tank made of high-strength steel or special alloy materials. It has good sealing and corrosion resistance, ensuring that the stored powdered materials (such as cement, fly ash, mineral powder and other powders) are not damp and contaminated.

[0003] The mixing station silo includes a base, a material tank (whose height is at least 25m), a level meter, a dust collector (whose height is at least 2m), a safety valve, and a control unit. The base is located at the lower end of the material tank, and a safety valve, a dust collector, and a level meter are installed on the upper side of the material tank. The control unit is located in a control room separated from the material tank and outside. The control unit includes a control circuit, etc.

[0004] The material level meter is installed on the upper side of the material tank to detect the amount of powder in the material tank. However, the material level meter is installed through the flange on the lower side combined with a large number of screw fasteners. The material tank is often installed outdoors and the production environment is harsh, which can easily cause the screw fasteners to rust. Therefore, when the material level meter needs maintenance or fails, maintenance and disassembly are quite difficult.

[0005] The dust collector is installed on the upper side of the material tank in a top-mounted layout. The dust collector includes a vibration motor, filter element, etc. The dust collector is used to reduce dust pollution. However, each time the dust collector is disassembled and assembled, a 25T crane with 5-section arms, an arm length of more than 30m is required.

[0006] The safety valve is a one-way valve, which is installed on the upper side of the tank. Theoretically, when the pressure in the tank is high and exceeds the opening pressure set by the safety valve, the safety valve will automatically open, and the mixed gas (including powder and air) in the tank will be discharged into the external atmosphere through the safety valve to achieve pressure relief, so that the pressure in the tank is continuously maintained within a certain range, but it will cause certain environmental pollution.

[0007] Generally, it is necessary to regularly check the safety valve and the vibration motor in the dust collector, and also to regularly check and replace the filter element in the dust collector. In this way, maintenance personnel need to climb to the upper side of the high material tank several times to perform corresponding operations.

[0008] The height of the material tank is relatively high, which requires maintenance personnel to have good professional ability, psychological quality, and no fear of heights, hypertension and other diseases. It is precisely because of certain risks in high-altitude maintenance operations (maintenance personnel are prone to fall from the upper side of the material tank during inspection, and casualties occur from time to time) that it is difficult to fully guarantee the safety of maintenance personnel during inspection, resulting in the safety valves of some mixing station silos not being inspected in time.

[0009] When a bulk truck (i.e., tank truck) transports powder into a tank, it is difficult to accurately and timely understand the actual pressure in the tank. In particular, when transporting powder at the bottom of the tank truck, a higher transport pressure is required. If the safety valve fails, the pressure in the tank will increase abnormally, which can easily lead to tank bulging and top impact accidents. That is, high-pressure gas will break through the upper side of the tank, rushing the dust collector into the sky and then throwing it down, causing harm to surrounding workers and damage to surrounding objects, posing a great threat to production safety.

[0010] At present, for the mixing station silo, the risks of high-altitude maintenance operations and potential safety hazards are technical problems that need to be urgently addressed and resolved. Utility Model Content

[0011] The technical problem to be solved by the utility model is to provide a mixing station silo with a tube bag valve. With the silo, even if the safety valve fails, the pressure in the material tank can be effectively prevented from abnormally increasing and causing safety hazards; the maintenance and disassembly of the level meter are quite easy, and the disassembly efficiency of the level meter is high; there is no need for high-altitude maintenance work on the dust collector, and the vibration motor in the dust collector can be conveniently and regularly checked, and the filter element in the dust collector can be regularly replaced. The maintenance of the dust collector is simple, convenient, safe and efficient; thereby effectively reducing the risk of high-altitude maintenance work and eliminating safety production hazards.

[0012] The technical solution of the utility model is:

[0013] A mixing station silo with a tube bag valve comprises a base, a material tank, a safety valve, a material level meter, a control unit, and a dust collector. The base is arranged at the lower end of the material tank, the safety valve is arranged at the upper side of the material tank, and the control unit comprises a control circuit.

[0014] The dust collector is installed on the upper side of the base, and a connecting pipe is provided in the circumference of the dust collector. The dust collector is connected to the upper part of the inner cavity of the material tank through the connecting pipe. A feeding pipe is provided in the circumference of the material tank, and the upper end of the feeding pipe is connected to the upper part of the inner cavity of the material tank. The lower end of the feeding pipe is connected to the tube bag valve. A pressure sensor electrically connected to the control circuit is provided on the upper side of the material tank. The control unit includes a solenoid valve electrically connected to the control circuit and an air compressor. An air pipe is connected between the tube bag valve and the air compressor, and the solenoid valve is arranged in the air pipe.

[0015] The upper side of the material tank is connected to the assembly pipe, and a square pipe seat is provided at the upper end of the assembly pipe. A square connecting groove connected to the assembly pipe is opened in the central area of ​​the pipe seat, and a sealing member is provided on the lower side of the connecting groove. The pipe seat is connected to the upper part of the inner cavity of the material tank through the connecting groove and the assembly pipe;

[0016] A fixing mechanism and a limiting mechanism are provided on the left side of the pipe seat, and a fixing mechanism and a limiting mechanism are provided on the right side of the pipe seat. The limiting mechanism and the fixing mechanism on the same side are connected in cooperation. The pipe seat is connected to the material level meter by means of the two fixing mechanisms and the two limiting mechanisms.

[0017] As a preferred technical solution, the lower side of the level meter is connected to a square connection seat, and two slots spaced front and back are opened on either side of the connection seat in the left and right directions;

[0018] Each fixing mechanism includes a cavity, which is opened on either side of the tube seat in the left and right directions, and a vertically arranged movable plate that moves left and right is provided in the cavity, and two front-to-back spaced blocks are provided on the side of the movable plate close to the seal, and each block extends into the connecting groove, and a horizontally arranged, left-to-right extending, circular pull rod is vertically provided on the other side of the movable plate away from the seal, and the end of the pull rod away from the movable plate passes through the cavity and extends outside the tube seat and is provided with a pull ring, and a spring is sleeved on the rod body of the pull rod in the cavity;

[0019] The snap-in ends of the two card blocks on the same side are snap-connected with the two card slots.

[0020] As a preferred technical solution, each limiting mechanism includes a limiting seat and a circular rotating rod. The limiting seats are arranged front and back and are located in front of the pull ring on the same side. One end of the rotating rod is rotatably connected to the same side of the tube seat. The other end of the rotating rod away from the tube seat passes through the limiting seat and is vertically provided with a handle rod. A limiting block is vertically provided in the middle of the rotating rod. The handle rod and the limiting block are located parallel to each other in the circumference of the rotating rod, and the extending ends of the handle rod and the limiting block point in the same direction.

[0021] As a preferred technical solution, the front side wall and the rear side wall in each cavity are each provided with two slide grooves spaced apart from each other and parallel to each other, the two upper slide grooves and the two lower slide grooves correspond to each other in position, and the movable plate slides with the four slide grooves on the same side to move left and right; the upper side surface of the card-in end of each card block is an inclined surface extending toward the seal and sloping downward.

[0022] As a preferred technical solution, a swivel seat is provided on the left outer wall and the right outer wall of the tube seat respectively. The swivel seat and the swivel rod on the same side correspond in position. The swivel seat and one end of the swivel rod on the same side are rotatably connected through a bearing. A horizontal U-shaped limit groove is opened on the front side of the limit seat away from the pull ring on the same side, and the other end of the swivel rod away from the tube seat passes through the limit groove on the same side.

[0023] As a preferred technical solution, a guardrail with a gap is provided on the upper side of the material tank, and an escalator is provided on the circumferential outer wall of the material tank, and the upper end of the escalator extends to the gap of the guardrail.

[0024] As a preferred technical solution, an air pipe interface is provided on the outer wall of the tube bag valve, and connecting flanges are provided at the upper end and the lower end of the tube bag valve.

[0025] When the utility model is used:

[0026] The control unit is arranged in a control room separated from the material tank and outside, and the control unit includes a control circuit, an air compressor, a solenoid valve, etc.;

[0027] The pressure sensor feeds back the pressure in the tank to the control circuit in a timely manner;

[0028] Powder is added to the material tank through a tank truck. When the pressure in the material tank reaches the preset value (the value is set by the pressure sensor), the pressure sensor will transmit the corresponding signal to the control circuit. After receiving the corresponding signal fed back by the pressure sensor, the control circuit immediately starts the air compressor and opens the solenoid valve that controls the tube bag valve. The high-pressure compressed air enters the tube bag valve through the solenoid valve and the air pipe. Under the action of the compressed air, the two rubber inner bags in the tube bag valve bulge toward the center of the tube bag valve and come into close contact with each other, causing the feed port of the tube bag valve to be reduced or even completely closed, so as to quickly close the tube bag valve, thereby preventing more mixed gas (including powder and air) from entering the material tank, and preventing the pressure in the material tank from abnormally increasing and posing a safety hazard. At the same time, by connecting the pipeline and the dust collector to collect dust and exhaust, and continuously releasing the pressure in the material tank, ensure that the pressure in the material tank is always kept within the preset value, so as to avoid the pressure in the material tank exceeding the opening pressure set by the safety valve, and prevent the mixed gas (including powder and air) in the material tank from being discharged into the external atmosphere through the safety valve, and will not cause environmental pollution;

[0029] When the pressure in the material tank is lower than the preset value (the value is set by the pressure sensor), the pressure sensor will transmit the corresponding signal to the control circuit. After receiving the corresponding signal fed back by the pressure sensor, the control circuit will immediately shut down the air compressor and cut off the solenoid valve that controls the tube bag valve. No more high-pressure compressed air enters the tube bag valve. The two rubber inner bags in the tube bag valve both retract in the direction away from the center of the tube bag valve and fit the circumferential inner wall of the tube bag valve respectively, resulting in an increase in the feed port of the tube bag valve or even a complete opening, so as to quickly open the tube bag valve, thereby allowing more mixed gas (including powder and air) to enter the material tank.

[0030] It can be seen that the pressure sensor realizes the opening and closing control of the tube bag valve through the control circuit.

[0031] Advantages of the utility model:

[0032] The pressure sensor controls the opening and closing of the tube bag valve through the control circuit. When the pressure in the tank reaches the preset value (the value is set by the pressure sensor), even if the safety valve fails, the tube bag valve can be quickly closed and the feeding can be stopped to prevent the abnormal increase of the pressure in the tank and the existence of safety hazards (such as: tank bulging and top impact accidents);

[0033] The pipe seat on the upper side of the tank is connected to the level meter in a flexible manner with the help of two fixing mechanisms and two limiting mechanisms. Therefore, when the level meter needs maintenance or fails, maintenance and disassembly are very convenient, which can effectively improve the disassembly efficiency of the level meter.

[0034] The dust collector sits on the upper side of the base and is a floor-standing type. This structural setting makes the inspection and maintenance of the dust collector (such as checking the vibration motor in the dust collector and replacing the filter element in the dust collector) simple, convenient, safe and efficient (the inspection and maintenance of the dust collector no longer requires high-altitude maintenance work), and also correspondingly expands the effective use space on the upper side of the material tank.

[0035] In summary, the use of this silo can effectively prevent the abnormal increase of pressure in the material tank and the existence of safety hazards even if the safety valve fails; the maintenance and disassembly of the material level meter are quite easy, and the disassembly efficiency of the material level meter is high; there is no need for high-altitude maintenance work on the dust collector, and the vibration motor in the dust collector can be easily and regularly checked and the filter element in the dust collector can be regularly replaced. The maintenance of the dust collector is simple, convenient, safe and efficient; thereby effectively reducing the risk of high-altitude maintenance work and eliminating safety hazards in production. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 is a stereogram of the present utility model (the control unit is not shown);

[0037] Figure 2 is another stereogram of the present utility model (control unit is not shown);

[0038] Figure 3 yes Figure 2 A magnified view of part A in FIG.

[0039] Figure 4 yes Figure 2 A magnified view of part B in FIG.

[0040] Figure 5 It is a three-dimensional diagram of the connection between the fixing mechanism, the limiting mechanism, the pipe seat and the assembly pipe in the utility model;

[0041] Figure 6 It is a three-dimensional diagram of the connection between the material level meter and the connecting seat in the utility model;

[0042] Figure 7 It is a structural schematic diagram of the connection between the fixing mechanism, the pipe seat and the assembly pipe in the utility model;

[0043] Figure 8 It is a principle block diagram of the connection between the control unit in the utility model, the pressure sensor and the tube bag valve.

[0044] Reference numerals: 1, base; 2, material tank; 201, safety valve; 202, pressure sensor; 3, feed pipe; 4, dust collector; 5, connecting pipe; 6, tube bag valve; 601, air pipe interface; 602, connecting flange; 603, air pipe; 7, escalator; 8, guardrail; 9, assembly pipe; 10, pipe seat; 11, connecting seat; 12, connecting groove; 13, material level meter; 14, fixing mechanism; 141, block; 142 , cavity; 143, movable plate; 144, spring; 145, pull rod; 146, pull ring; 15, limiting mechanism; 151, rotating rod; 152, handle rod; 153, limiting block; 154, limiting seat; 16, slide groove; 17, limiting groove; 18, rotating seat; 19, card slot; 20, sealing element; 21, control unit; 211, control circuit; 212, air compressor; 213, solenoid valve; 214, air tank. DETAILED DESCRIPTION

[0045] 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.

[0046] refer to Figures 1 to 8 :

[0047] It should be noted that, for the sake of simplicity, Figure 2 , Figure 4 , Figure 5 Only the cavity 142, the slide groove 16, the movable plate 143, and the spring 144 on the right side are shown, that is, the cavity, the slide groove, the movable plate, and the spring on the left side are not shown.

[0048] A mixing station silo with a tube bag valve includes a base 1, a material tank 2, a safety valve 201, a material level meter 13, a control unit 21, and a dust collector 4. The base 1 is arranged at the lower end of the material tank 2, the safety valve 201 is arranged on the upper side of the material tank 2, and the control unit 21 includes a control circuit 211, an air storage tank 214, a solenoid valve 213 electrically connected to the control circuit 211, and an air compressor 212.

[0049] The dust collector 4 is installed on the upper side of the base 1, and a connecting pipe 5 is provided on the circumference of the dust collector 4. The dust collector 4 is connected to the upper part of the inner cavity of the material tank 2 through the connecting pipe 5. A feeding pipe 3 is provided on the circumference of the material tank 2 away from the connecting pipe 5. The upper end of the feeding pipe 3 is connected to the upper part of the inner cavity of the material tank 2, and the lower end of the feeding pipe 3 is connected to the tube bag valve 6. A pressure sensor 202 electrically connected to the control circuit 211 is provided on the upper side of the material tank 2, and an air pipe 603 is connected between the tube bag valve 6 and the air compressor 212. The solenoid valve 213 and the air storage tank 214 are arranged in the air pipe 603, and the solenoid valve 213 is close to the tube bag valve 6, and the air storage tank 214 is close to the air compressor 212.

[0050] The upper side of the material tank 2 is connected to the assembly pipe 9, and a square pipe seat 10 is provided at the upper end of the assembly pipe 9. A square connecting groove 12 connected to the assembly pipe 9 is opened in the central area of ​​the pipe seat 10, and a sealing member 20 is provided on the lower side of the connecting groove 12. The pipe seat 10 is connected to the upper part of the inner cavity of the material tank 2 through the connecting groove 12 and the assembly pipe 9.

[0051] A fixing mechanism 14 and a limiting mechanism 15 are provided on the left side of the tube seat 10, and a fixing mechanism 14 and a limiting mechanism 15 are provided on the right side of the tube seat 10. The two fixing mechanisms 14 are symmetrical, and the two limiting mechanisms 15 are symmetrical. The limiting mechanisms 15 and the fixing mechanisms 14 on the same side are cooperatively connected. The tube seat 10 is connected to the level meter 13 with the help of the two fixing mechanisms 14 and the two limiting mechanisms 15.

[0052] When the utility model is used:

[0053] The control unit 21 is arranged in a control room separated from the material tank 2 and outside. The control unit 21 includes a control circuit 211, an air compressor 212, an air storage tank 214, and a solenoid valve 213;

[0054] The pressure sensor 202 feeds back the pressure in the material tank 2 to the control circuit 211 in a timely manner;

[0055] Powder is added to the material tank 2 through a tank truck. When the pressure in the material tank 2 reaches a preset value (the value is set by the pressure sensor 202), the pressure sensor 202 transmits a corresponding signal to the control circuit 211. After receiving the corresponding signal fed back by the pressure sensor 202, the control circuit 211 immediately starts the air compressor 212 and opens the solenoid valve 213 of the control tube bag valve 6. The high-pressure compressed air enters the tube bag valve 6 through the air storage tank 214, the solenoid valve 213, and the air pipe 603. Under the action of the compressed air, the two rubber inner bags in the tube bag valve 6 bulge toward the center of the tube bag valve 6 and are in close contact with each other. , causing the feed port of the tube bag valve 6 to be reduced or even completely closed, so as to quickly close the tube bag valve 6, thereby preventing the mixed gas (including powder and air) from entering the material tank 2 more, and preventing the pressure in the material tank 2 from abnormally increasing and posing a safety hazard. At the same time, by connecting the pipeline 5 and the dust collector 4 to collect dust and exhaust, and continuously releasing the pressure in the material tank 2, it is ensured that the pressure in the material tank 2 is always maintained within the preset value, so as to avoid the pressure in the material tank 2 exceeding the opening pressure set by the safety valve 201, and prevent the mixed gas (including powder and air) in the material tank 2 from being discharged into the external atmosphere through the safety valve 201, and will not cause environmental pollution;

[0056] When the pressure in the material tank 2 is lower than a preset value (the value is set by the pressure sensor 202), the pressure sensor 202 transmits a corresponding signal to the control circuit 211. After receiving the corresponding signal fed back by the pressure sensor 202, the control circuit 211 immediately turns off the air compressor 212 and cuts off the solenoid valve 213 that controls the tube bag valve 6. No more high-pressure compressed air enters the tube bag valve 6. The two rubber inner bags in the tube bag valve 6 shrink away from the center of the tube bag valve 6 and fit the circumferential inner wall of the tube bag valve 6 respectively, resulting in an increase in the feed port of the tube bag valve 6 or even a complete opening, so as to quickly open the tube bag valve 6, thereby allowing more mixed gas (including powder and air) to enter the material tank 2.

[0057] It can be seen that the pressure sensor 202 realizes the opening and closing control of the tube bag valve 6 through the control circuit 211.

[0058] It is precisely because the pressure sensor 202 realizes the opening and closing control of the tube bag valve 6 through the control circuit 211 that when the pressure in the material tank 2 reaches the preset value (the value is set by the pressure sensor 202), even if the safety valve 201 fails, the tube bag valve 6 can be quickly closed and the feeding can be stopped to prevent the pressure in the material tank 2 from rising abnormally and causing safety hazards (such as: tank bulging and top impact accidents).

[0059] The dust collector 4 is seated on the upper side of the base 1 and is a floor-standing arrangement. This structural arrangement makes the inspection and maintenance of the dust collector 4 (such as inspecting the vibration motor in the dust collector 4 and replacing the filter element in the dust collector 4) simple, convenient, safe and efficient (the inspection and maintenance of the dust collector 4 no longer requires high-altitude maintenance operations), and also correspondingly expands the effective use space on the upper side of the material tank 2.

[0060] The material level meter 13, the sealing element 20, the safety valve 201, the pressure sensor 202, the control unit 21 (including the control circuit 211, the air compressor 212, the solenoid valve 213, the air storage tank 214), the dust collector 4, and the tube bag valve 6 can all be purchased externally.

[0061] The material level meter 13 is a weight-type material level meter, the safety valve 201 is a one-way valve, the sealing element 20 is an O-ring, and the base 1 is prefabricated with reinforced concrete.

[0062] The lower side of the material level meter 13 is connected to the square connection seat 11. Two slots 19 spaced apart from each other are provided on either side of the connection seat 11 in the left and right directions. The two slots 19 on one side and the two slots 19 on the other side are in a left-right symmetrical position relationship.

[0063] Each fixing mechanism 14 includes a cavity 142, which is opened on either side of the tube seat 10 in the left and right directions. A movable plate 143 arranged vertically and movable left and right is provided in the cavity 142. Two blocks 141 spaced apart from each other are provided on the side of the movable plate 143 close to the seal 20. Each block 141 is movable left and right and extends into the connecting groove 12. A horizontally arranged, left and right extending, circular pull rod 145 is vertically provided on the other side of the movable plate 143 away from the seal 20. The end of the pull rod 145 away from the movable plate 143 passes through the cavity 142 and extends outside the tube seat 10 and is provided with a pull ring 146. A spring 144 is mounted on the rod body of the pull rod 145 in the cavity 142. One end of the spring 144 is in elastic contact with the other side of the movable plate 143 away from the seal 20, and the other end of the spring 144 is in elastic contact with the side wall of the cavity 142 away from the seal 20.

[0064] In the two fixing mechanisms 14, the two clamping blocks 141 on one side and the two clamping blocks 141 on the other side are in a bilaterally symmetrical positional relationship;

[0065] The two clamping blocks 141 on the same side correspond to the two clamping slots 19 in position, and the clamping ends of the two clamping blocks 141 on the same side are clamped with the two clamping slots 19 .

[0066] When installing the material level meter 13, first, let the lower detection end of the material level meter 13 pass through the pipe seat 10, let the assembly pipe 9 be placed in the cavity of the material tank 2, and then insert the connecting seat 11 of the material level meter 13 into the connecting groove 12. The four card slots 19 on the connecting seat 11 correspond to the card-in ends of the four card blocks 141 in position. The card-in ends of the four card blocks 141 are continuously squeezed by the connecting seat 11, so that each movable plate 143 moves in the cavity 142 on the same side and compresses the same The spring 144 on the side continues to press the level meter 13 downward until each spring 144 rebounds and pushes the corresponding two blocks 141 to be clamped into the two grooves 19 on the same side, thereby positioning the level meter 13. In other words, the pipe seat 10 is clamped with the groove 19 of the connecting seat 11 through the fixing mechanism 14; the connecting seat 11 presses the sealing member 20 in the connecting groove 12 downward to form a seal for the connecting seat 11, so that the level meter 13 can be easily and quickly installed.

[0067] Each limiting mechanism 15 includes a limiting seat 154 and a circular rotating rod 151. The limiting seat 154 is arranged front to back and is located in front of the pull ring 146 on the same side. The rotating rod 151 is arranged horizontally and extends left to right. One end of the rotating rod 151 is rotatably connected to the same side of the tube seat 10. The other end of the rotating rod 151 away from the tube seat 10 passes through the limiting seat 154 and is vertically provided with a handle rod 152. A limiting block 153 is vertically provided in the middle of the rotating rod 151. The handle rod 152 and the limiting block 153 are located parallel to each other in the circumference of the rotating rod 151, and the extending ends of the handle rod 152 and the limiting block 153 point to the same direction.

[0068] The front side wall and the rear side wall in each cavity 142 are respectively provided with two slide grooves 16 spaced up and down and parallel to each other, the two upper slide grooves 16 and the two lower slide grooves 16 are corresponding to each other in position, the two slide grooves 16 on the front side and the two slide grooves 16 on the rear side are in a front-to-back symmetrical positional relationship, and the movable plate 143 is slidably matched with the four slide grooves 16 on the same side to move left and right, that is: the front side wall of the movable plate 143 is slidably matched with the two slide grooves 16 on the front side through two outwardly extending ear plates, and the rear side wall of the movable plate 143 is slidably matched with the two slide grooves 16 on the rear side through two outwardly extending ear plates (the part numbers of the four outwardly extending ear plates are not shown in the accompanying drawings); the upper side surface of the clamping end of each clamping block 141 is an inclined surface extending toward the sealing member 20 and tilted downward.

[0069] By means of the sliding cooperation between the movable plate 143 and the four slide grooves 16 opened in the cavity 142 on the same side, the movable plate 143 can be stably moved left and right in the cavity 142 on the same side.

[0070] A swivel seat 18 is provided on the left outer wall and the right outer wall of the tube seat 10, and the two swivel seats 18 are symmetrical on the left and right. The swivel seat 18 corresponds to the swivel rod 151 on the same side in position. The swivel seat 18 is rotatably connected to one end of the swivel rod 151 on the same side through a bearing. A horizontal U-shaped limiting groove 17 with a notch in front is opened on the front side of the limiting seat 154 away from the pull ring 146 on the same side, and the other end of the rotating rod 151 away from the tube seat 10 passes through the limiting groove 17 on the same side.

[0071] Through the swivel seat 18 with bearings on the left and right outer walls of the tube seat 10, the rotating rod 151 can rotate more flexibly and stably on the swivel seat 18 on the same side; through the limit seat 154 with a limit groove 17, the limit block 153 is easy to cooperate with the limit seat 154 on the same side, which is convenient for limiting the pull ring 146.

[0072] When disassembling the level meter 13, for the fixing mechanism 14 and the limiting mechanism 15 on the same side, the pull ring 146 is used to pull the pull rod 145 on the same side, and the pull rod 145 drives the corresponding two clamping blocks 141 through the movable plate 143 on the same side, so that the two clamping blocks 141 are separated from the two clamping grooves 19 on the same side. In the process of pulling the above-mentioned pull rod 145, the handle rod 152 on the same side is used to make the corresponding rotating rod 151 rotate in the limiting groove 17 on the same side, so that the limiting block 153 on the same side is in a horizontal and forward extending state. When the pull ring 146 drives the corresponding After the limiting seat 154 and the limiting groove 17 pass over the limiting block 153 on the same side, the handle rod 152 on the same side is used to rotate the corresponding rotating rod 151 again, so that the limiting block 153 on the same side is in a vertical, downward extending state, so that the limiting block 153 on the same side has a blocking effect on the corresponding limiting seat 154, and the position of the pull ring 146 can be limited. Finally, when the two pull rings 146 on the left and right sides of the tube seat 10 are limited, the level meter 13 can be easily removed from the tube seat 10 using the upper handle of the level meter 13.

[0073] The pipe seat 10 on the upper side of the material tank 2 is flexibly connected with the material level meter 13 by means of two fixing mechanisms 14 and two limiting mechanisms 15. Therefore, when the material level meter 13 needs maintenance or fails, maintenance and disassembly are very convenient, which can effectively improve the disassembly efficiency of the material level meter 13.

[0074] A guardrail 8 with a gap is provided on the upper side of the material tank 2 , and a ladder 7 is provided on the circumferential outer wall of the material tank 2 . The gap of the guardrail 8 and the ladder 7 are in a corresponding positional relationship up and down, and the upper end of the ladder 7 extends to the gap of the guardrail 8 .

[0075] By using the guardrail 8 and the escalator 7, maintenance personnel can easily climb onto the upper side of the material tank 2 and perform corresponding inspection and maintenance operations more safely.

[0076] An air pipe interface 601 is provided on the outer wall of the tube bag valve 6 , and a connecting flange 602 is provided at the upper end and the lower end of the tube bag valve 6 .

[0077] The air pipe interface 601 is used to connect the tube bag valve 6 with the air pipe 603 (connected with the solenoid valve 213, the air storage tank 214, and the air compressor 212); the two connecting flanges 602 are used to connect the tube bag valve 6 with the feed pipe 3 at the top and with the conveying pipe of the tank truck at the bottom.

[0078] In summary, by adopting the utility model, even if the safety valve 201 fails, the pressure in the material tank 2 can be effectively prevented from abnormally increasing and causing safety hazards; the maintenance and disassembly of the material level meter 13 are quite easy, and the disassembly efficiency of the material level meter 13 is relatively high; there is no need for high-altitude maintenance work on the dust collector 4, and the vibration motor in the dust collector 4 can be conveniently and regularly checked, and the filter element in the dust collector 4 can be regularly replaced, and the maintenance of the dust collector 4 is simple, convenient, safe and efficient; thereby effectively reducing the risk of high-altitude maintenance work and eliminating safety hazards in production.

[0079] Although the 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 mixing station silo with a tube bag valve, comprising a base (1), a material tank (2), a safety valve (201), a material level meter (13), a control unit (21), and a dust collector (4), wherein the base (1) is arranged at the lower end of the material tank (2), the safety valve (201) is arranged at the upper side of the material tank (2), and the control unit (21) comprises a control circuit (211), characterized in that: The dust collector (4) is installed on the upper side of the base (1). A connecting pipe (5) is provided on the circumference of the dust collector (4). The dust collector (4) is connected to the upper part of the inner cavity of the material tank (2) through the connecting pipe (5). A feeding pipe (3) is provided on the circumference of the material tank (2). The upper end of the feeding pipe (3) is connected to the upper part of the inner cavity of the material tank (2). The lower end of the feeding pipe (3) is connected to the tube bag valve (6). A pressure sensor (202) electrically connected to the control circuit (211) is provided on the upper side of the material tank (2). The control unit (21) comprises an electromagnetic valve (213) electrically connected to the control circuit (211) and an air compressor (212). An air pipe (603) is connected between the tube bag valve (6) and the air compressor (212). The electromagnetic valve (213) is arranged in the air pipe (603). The upper side of the material tank (2) is connected to the assembly pipe (9), the upper end of the assembly pipe (9) is provided with a square pipe seat (10), the central area of ​​the pipe seat (10) is provided with a square connecting groove (12) which is connected to the assembly pipe (9), the lower side of the connecting groove (12) is provided with a sealing member (20), and the pipe seat (10) is connected to the upper part of the inner cavity of the material tank (2) through the connecting groove (12) and the assembly pipe (9); A fixing mechanism (14) and a limiting mechanism (15) are provided on the left side of the tube seat (10), and a fixing mechanism (14) and a limiting mechanism (15) are provided on the right side of the tube seat (10). The limiting mechanism (15) and the fixing mechanism (14) on the same side are cooperatively connected. The tube seat (10) is plugged into the material level meter (13) by means of the two fixing mechanisms (14) and the two limiting mechanisms (15).

2. A mixing station silo with a tube bag valve according to claim 1, characterized in that: The lower side of the material level meter (13) is connected to a square connection seat (11), and two slots (19) spaced apart from each other are provided on either side of the connection seat (11) in the left and right directions; Each fixing mechanism (14) comprises a cavity (142), the cavity (142) being opened on either side of the tube seat (10) in the left and right directions, a movable plate (143) being arranged vertically and movable left and right is provided in the cavity (142), two blocks (141) spaced apart from each other are provided on one side of the movable plate (143) close to the sealing member (20), each block (141) extending into the connecting groove (12), a horizontally arranged, left and right extending, circular pull rod (145) is vertically provided on the other side of the movable plate (143) away from the sealing member (20), the end of the pull rod (145) away from the movable plate (143) passes through the cavity (142) and extends outside the tube seat (10) and is provided with a pull ring (146), and a spring (144) is sleeved on the rod body of the pull rod (145) in the cavity (142); The snap-in ends of the two snap-in blocks (141) on the same side are snap-connected with the two snap-in slots (19).

3. A mixing station silo with a tube bag valve according to claim 2, characterized in that: Each limiting mechanism (15) comprises a limiting seat (154) and a circular rotating rod (151); the limiting seats (154) are arranged front and rear and are provided on the front side of the pull ring (146) on the same side; one end of the rotating rod (151) is rotatably connected to the same side of the tube seat (10); the other end of the rotating rod (151) away from the tube seat (10) passes through the limiting seat (154) and is vertically provided with a handle rod (152); a limiting block (153) is vertically provided in the middle of the rotating rod (151); the handle rod (152) and the limiting block (153) are located parallel to each other in the circumferential direction of the rotating rod (151), and the extended ends of the handle rod (152) and the limiting block (153) point in the same direction.

4. A mixing station silo with a tube bag valve according to claim 2, characterized in that: The front side wall and the rear side wall in each cavity (142) are each provided with two sliding grooves (16) spaced apart from each other and parallel to each other, the two upper sliding grooves (16) and the two lower sliding grooves (16) are corresponding to each other in position, and the movable plate (143) is slidably matched with the four sliding grooves (16) on the same side to move left and right; the upper side surface of the snap-in end of each clamping block (141) is an inclined surface extending toward the sealing member (20) and tilted downward.

5. A mixing station silo with a tube bag valve according to claim 3, characterized in that: A swivel seat (18) is provided on the left outer wall and the right outer wall of the tube seat (10). The swivel seat (18) corresponds to the swivel rod (151) on the same side in position. The swivel seat (18) is rotatably connected to one end of the swivel rod (151) on the same side via a bearing. A transverse U-shaped limiting groove (17) is formed on the front side of the limiting seat (154) away from the pull ring (146) on the same side. The other end of the swivel rod (151) away from the tube seat (10) passes through the limiting groove (17) on the same side.

6. A mixing station silo with a tube bag valve according to claim 1, characterized in that: A guardrail (8) with a notch is provided on the upper side of the material tank (2), and a ladder (7) is provided on the circumferential outer wall of the material tank (2), wherein the upper end of the ladder (7) extends to the notch of the guardrail (8).

7. A mixing station silo with a tube bag valve according to claim 1, characterized in that: An air pipe interface (601) is provided on the outer wall of the tube bag valve (6), and connecting flanges (602) are provided at the upper end and the lower end of the tube bag valve (6).

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