Ammonium sulfate blanking device capable of preventing material blockage

Abstract

The utility model discloses an ammonium sulfate blanking device capable of preventing material blockage, which comprises a stock bin funnel, a stock bin passage is connected below the stock bin funnel, an ammonium sulfate bag clamping device is connected below the stock bin passage, the stock bin funnel is a square funnel, and a scraping plate is arranged on the inner wall of the stock bin funnel. The ammonium sulfate stock bin hopper is reasonable in structural design and has the advantages that the ammonium sulfate stock bin hopper is arranged to be a square hopper, the stainless steel plate scraping plates with the motors are installed on the inner walls in the four directions of the stock bin hopper, and after the motors are started, the motors rotate to drive the scraping plates to rotate, so that the ammonium sulfate stock bin hopper is formed. By means of the arrangement, the situation that ammonium sulfate dust accumulation affects normal discharging of the stock bin can be avoided, meanwhile, accumulated ammonium sulfate in the ammonium sulfate stock bin funnel is cleared away in time, it is ensured that no ammonium sulfate accumulation exists in the stock bin, and therefore discharging is not smooth, and the operation stability of equipment is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of feeding devices, in particular to an ammonium sulfate feeding device which can prevent material blockage. Background Art

[0002] As the country's environmental protection control becomes increasingly strict, the requirements for tail gas emissions are getting higher and higher, especially the control of SO2 emissions, which requires that ammonia-based desulfurization equipment must have long-term safe, stable and efficient operation. The role of ammonium sulfate production is crucial. If the ammonium sulfate production is abnormal, the tail gas desulfurization will not be able to operate normally.

[0003] During the production of ammonium sulfate, due to the water content of ammonium sulfate powder, it is easy for the ammonium sulfate powder to accumulate along the walls of the hopper around the silo during the feeding process, which eventually causes blockage. Although there are various treatment methods, the results are not ideal. The blockage of the ammonium sulfate silo feeding funnel is extremely harmful. If it is not handled in time, the feeding cannot be carried out normally; in severe cases, the silo funnel will become hardened and the silo needs to be manually disassembled and cleaned. Since the silo contains ammonia, ammonium sulfate dust and other substances that are harmful to the human body, it brings hidden dangers to safe production. Therefore, solving the blockage of the ammonium sulfate feeding funnel in the production process of ammonium sulfate is an urgent problem to be solved.

[0004] At the same time, manufacturers currently have not considered a targeted solution to the blockage of the ammonium sulfate silo funnel. The more common method in the production process is to hit the outer wall of the silo funnel with a rubber hammer to vibrate the ammonium sulfate lumps down. Although this has a certain effect, after repeated knocks, the silo funnel will become uneven and severely deformed, which is more conducive to the accumulation and agglomeration of ammonium sulfate powder. Utility Model Content

[0005] The utility model aims to provide an ammonium sulfate feeding device which can prevent material blockage and can clean up the accumulated ammonium sulfate in the hopper of the ammonium sulfate silo to ensure smooth feeding of the silo.

[0006] In order to achieve the above-mentioned purpose, the technical solution of the utility model provides an ammonium sulfate feeding device that prevents material blockage, including a silo funnel, the silo funnel is connected to a silo aisle below, the silo aisle is connected to an ammonium sulfate bag clamping device below, the silo funnel is a square funnel, and a scraper plate is arranged on the inner wall of the silo funnel.

[0007] Furthermore, there are four scraper plates, which are respectively arranged on the inner walls of the silo hopper in four directions.

[0008] Furthermore, the scraper plate is a square scraper plate with a motor, and the motor can drive the scraper plate to rotate parallel to the inner wall of the silo funnel. The motor is a 10-level motor, and the motor speed is 400-600 rpm / min.

[0009] Furthermore, the scraper plate is a stainless steel scraper plate.

[0010] Furthermore, a thermometer and a hot air blower are provided on the upper part of the silo aisle.

[0011] Furthermore, the ammonium sulfate feeding device is also provided with a PLC control device, and the PLC control device is connected to the motor, thermometer and hot air blower of the scraper plate.

[0012] Furthermore, the motor of the scraper plate is arranged on the outer wall of the silo hopper, the motor is connected to the scraper plate through a motor shaft, the motor shaft is fixed to the outer wall of the silo hopper through a bearing, and a sealing gasket is arranged between the bearing and the scraper plate.

[0013] Furthermore, the ammonium sulfate feeding device is also provided with a frame, and the motor of the scraper plate is arranged on the top of the frame.

[0014] Furthermore, the angles between the four surfaces of the silo funnel and the horizontal plane are consistent in size, and the angles between the four surfaces of the silo funnel and the horizontal plane are ≥70°.

[0015] Furthermore, the square funnel is a square funnel, and the scraper plate is a rectangular scraper plate.

[0016] To sum up, the device structure of the utility model is reasonably designed, and the use of the technical scheme of the utility model has the following beneficial effects: the ammonium sulfate silo funnel is set as a square funnel, and a stainless steel scraper plate with a motor is installed on the inner wall of the silo funnel in four directions. When the motor is started, the motor rotates to drive the scraper plate to rotate, so that the ammonium sulfate aggregate on the scraper plate can be smoothly driven into the silo aisle. This setting can avoid the accumulation of ammonium sulfate dust affecting the normal discharge of the silo, and at the same time, the accumulated ammonium sulfate in the ammonium sulfate silo funnel is cleaned up in time to ensure that there is no ammonium sulfate accumulation inside the silo to cause poor discharge, thereby improving the stability of equipment operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the ammonium sulfate feeding device of the utility model;

[0018] Figure 2 It is a schematic diagram of the top view of the silo funnel of the utility model;

[0019] Explanation of the accompanying drawings: 1- silo funnel; 2- silo aisle; 3- ammonium sulfate bag clamping device; 4- scraper plate; 5- motor; 6- thermometer; 7- hot air blower; 8- PLC control device. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention, but this does not constitute a limitation on the protection scope of the present invention.

[0021] In the present invention, for a clearer description, the following explanation is made: the observer faces the attached Figure 1 For observation, the left front side of the observer is set as the front, the right rear side of the observer is set as the rear, the left rear side of the observer is set as the left, the right front side of the observer is set as the right, the top of the observer is set as the top, and the bottom of the observer is set as the bottom. It should be pointed out that the terms "front end", "rear end", "left side", "right side", "middle", "top", "bottom" and the like in the text indicate the orientation or position relationship based on the orientation or position relationship set in the drawings, which is only for the convenience of clearly describing the utility model, and does not indicate or imply that the structure or component referred to must have a specific orientation or be constructed in a specific orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", "third", and "fourth" are only used for the purpose of clarifying or simplifying the description, and cannot be understood as indicating or implying relative importance or quantity.

[0022] See also Figure 1 , Figure 2 The utility model provides an ammonium sulfate feeding device for preventing material blockage, including a silo funnel 1, the silo funnel 1 is connected to a silo aisle 2, the silo aisle 2 is connected to an ammonium sulfate bag clamping device 3, the silo funnel 1 is a square funnel, and a scraper plate 4 is arranged on the inner wall of the silo funnel 1.

[0023] The ammonium sulfate silo funnel is generally conical, with a large upper diameter and a small lower diameter. The further downward, the smaller the flow channel section is, and the greater the corresponding resistance to the outflow of ammonium sulfate. Ammonium sulfate flows into the packaging bag under the action of gravity without external force. Ammonium sulfate has a high moisture content and is easy to agglomerate. If the temperature of the silo funnel 1 is low when ammonium sulfate is just packaged, it is easy to form accumulation on the inner wall of the silo funnel 1. At the same time, if the inner wall of the ammonium sulfate silo funnel 1 is rough and not smooth, the resistance coefficient is large, and ammonium sulfate powder is also easy to accumulate.

[0024] In order to avoid the situation in which the accumulation of ammonium sulfate dust affects the normal discharge of the silo during the ammonium sulfate production process, the accumulated ammonium sulfate in the ammonium sulfate silo hopper 1 should be cleaned in time to ensure that there is no ammonium sulfate accumulation inside the silo funnel 1 causing poor discharge, thereby improving the stability of equipment operation.

[0025] It is also necessary to avoid the method of manually hitting the outer wall of the funnel tube with a hammer due to silo blockage to reduce the possibility of silo damage; at the same time, it is also necessary to reduce the unsafe behavior caused by manual dismantling of the silo for internal cleaning, reduce the occurrence rate of dangerous accidents and reduce the cost of maintenance and cleaning.

[0026] Therefore, the ammonium sulfate silo funnel 1 is changed from a traditional round funnel to a square funnel, and rectangular stainless steel scraper plates with motors are installed on the inner walls of the silo funnel 1 in four directions. When the motor 5 is started, the motor 5 rotates to drive the scraper plate 4 to rotate, so that the ammonium sulfate aggregate on the scraper plate 4 can be smoothly driven into the silo aisle 2. It can avoid the situation where the accumulation of ammonium sulfate dust affects the normal discharge of the silo, and at the same time, the accumulated ammonium sulfate in the ammonium sulfate silo funnel 1 is cleaned in time to ensure that there is no ammonium sulfate accumulation inside the silo to cause poor discharge, thereby improving the stability of equipment operation.

[0027] As a preferred embodiment of the utility model, there are four scraper plates 4, which are respectively arranged on the inner walls of the silo funnel 1 in four directions; the scraper plate 4 is a rectangular scraper plate made of stainless steel plate with a motor 5, and the motor 5 can drive the scraper plate 4 to rotate parallel to the inner wall of the silo funnel 1. The motor 5 is a 10-level motor, and the speed of the motor 5 is 400-600rpm / min.

[0028] The provision of the scraper plate 4 enables the ammonium sulfate silo hopper 1 to be cleaned regularly, quickly and safely without the need to dismantle the silo for manual cleaning, thereby improving work efficiency.

[0029] As a preferred embodiment of the utility model, a thermometer 6 and a hot air blower 7 are provided on the upper part of the silo aisle 2, and the ammonium sulfate unloading device is also provided with a PLC control device 8, which can control the motor 5 of the scraper plate 4, the thermometer 6 and the opening and closing of the hot air blower 7 and related settings.

[0030] The PLC control device 8 is used for control, and the motor 5 can be started at any time to scrape the ammonium sulfate to avoid accumulation. In addition, this method for cleaning the blockage in the silo hopper 1 is simple and quick, and only needs to be operated on the PLC operation panel.

[0031] A thermometer 6 and a hot air blower 7 are provided on the upper part of the silo aisle 2, which can monitor the temperature of the silo funnel 1 in real time. At the same time, the hot air blower 7 is provided to heat the silo funnel 1 to avoid the accumulation and blockage of ammonium sulfate powder due to the high water content and low temperature of ammonium sulfate in the ammonium sulfate packaging production process, causing the ammonium sulfate packaging production to stagnate, thereby affecting the normal operation of the tail gas desulfurization system.

[0032] Before each production and packaging of ammonium sulfate, the PLC control device 8 can be used to control the hot air blower 7 to turn on, so that the 80°C hot air from the vibrating fluidized bed enters the silo funnel 1 to heat and dry the silo funnel 1. At this time, the hot air valve is in an open state; to prevent a small amount of ammonium sulfate powder from being adsorbed on the inner wall of the silo, when the thermometer 6 detects that the silo temperature reaches 60°C, the PLC control device 8 will automatically turn off the hot air blower 7, and the hot air valve is in a closed state; during the heating period, the ammonium sulfate discharge valve at the bottom is in a closed state to prevent the hot air from scalding people, and the top is connected to the vibrating fluidized bed.

[0033] Specifically, the motor 5 of the scraper plate 4 is arranged on the outer wall of the silo hopper 1, the motor 5 is connected to the scraper plate 4 through the motor shaft, the motor shaft is fixed to the outer wall of the silo hopper 1 through a bearing, and a sealing gasket is arranged between the bearing and the scraper plate 4. The motor shaft is fixed to the silo wall through a bearing, and the sealing gasket prevents the leakage of ammonium sulfate.

[0034] Specifically, the ammonium sulfate feeding device is also provided with a frame, and the motor 5 of the scraper plate 4 is arranged at the top of the frame; the square funnel is a square funnel.

[0035] Specifically, the angles between the four surfaces of the silo funnel 1 and the horizontal plane are consistent in size, and the angles between the four surfaces of the silo funnel 1 and the horizontal plane are ≥70°.

[0036] In the process of producing ammonium sulfate, before packaging ammonium sulfate, the utility model first turns on the hot air blower 7 through the PLC control device 8 to heat the silo hopper 1 with hot air, and the lower discharge valve is closed. When the temperature in the silo reaches 60°C, the PLC control device 8 automatically turns off the hot air. During the heating of the silo hopper 1 with hot air, the scraper plate motor is started to scrape the inner wall of the silo hopper 1 in four directions, and the residual ammonium sulfate powder is scraped off on the inner wall of the silo to prevent the accumulation of ammonium sulfate powder. During the heating of the ammonium sulfate silo hopper 1, various equipment (cyclone, centrifuge, screw conveyor, vibrating fluidized bed) in the ammonium sulfate production process are simultaneously started. After all equipment is operating normally and the scraper motor is running, when preparing for ammonium sulfate unloading production, the silo inlet manual valve is closed, and the hot air automatic valve is set to the manual closing state through the PLC control device 8 to prevent opening by mistake. After everything is ready, the ammonium sulfate can be unloaded and packaged, and the scraper plate motor is stopped. During this period, depending on the blockage of the silo hopper 1, it is selected whether to start the scraper motor 5.

[0037] The beneficial effects of the utility model are as follows:

[0038] 1. The ammonium sulfate silo funnel is changed from the traditional cone to a square cone, and each surface of the silo funnel is smooth and level without any unevenness, which is convenient for the scraper to scrape the material. The scraper motor is a 10-level motor, which controls the rotation speed and is not easy to be too fast. The motor shaft is fixed to the silo wall through a bearing, and a sealing gasket is used to prevent leakage of ammonium sulfate.

[0039] 2. A remote thermometer is installed under the silo funnel, and the hot air blower can be controlled by the PLC control device to heat the silo to prevent the low temperature of the silo funnel during ammonium sulfate packaging, which may easily adhere to the inner wall and form lumps and block the material.

[0040] 3. The stainless steel plate on the inner wall of the ammonium sulfate silo funnel is polished to reduce roughness, increase smoothness, reduce friction coefficient, and prevent ammonium sulfate dust from accumulating.

[0041] The above is a preferred embodiment of the present invention. It should be pointed out that a person skilled in the art can make several improvements and modifications without departing from the principle of the present invention. These improvements and modifications are also considered to be within the protection scope of the present invention.

Claims

1. An ammonium sulfate feeding device for preventing material blockage, comprising a silo funnel, the silo funnel is connected to a silo aisle below, the silo aisle is connected to an ammonium sulfate bag clamping device below, characterized in that: The silo funnel is a square funnel, and a scraper plate is arranged on the inner wall of the silo funnel; a thermometer and a hot air blower are arranged on the upper part of the silo aisle.

2. According to claim 1, an ammonium sulfate feeding device for preventing material blockage is characterized in that: There are four scraper plates, which are respectively arranged on the inner walls of the silo hopper in four directions.

3. According to claim 2, an ammonium sulfate feeding device for preventing material blockage is characterized in that: The scraper plate is a square scraper plate with a motor, and the motor can drive the scraper plate to rotate parallel to the inner wall of the silo funnel. The motor is a 10-level motor, and the motor speed is 400-600 rpm / min.

4. A device for discharging ammonium sulfate to prevent material blockage according to claim 1 or 3, characterized in that: The scraper plate is a stainless steel scraper plate.

5. The ammonium sulfate feeding device for preventing material blockage according to claim 3 is characterized in that: The ammonium sulfate feeding device is also provided with a PLC control device, and the PLC control device is connected with the motor, the thermometer and the hot air blower of the scraper plate.

6. The ammonium sulfate feeding device for preventing material blockage according to claim 3 is characterized in that: The motor of the scraper plate is arranged on the outer wall of the silo hopper, the motor is connected to the scraper plate through a motor shaft, the motor shaft is fixed to the outer wall of the silo hopper through a bearing, and a sealing gasket is arranged between the bearing and the scraper plate.

7. The ammonium sulfate feeding device for preventing material blockage according to claim 6 is characterized in that: The ammonium sulfate feeding device is also provided with a frame, and the motor of the scraper plate is arranged on the top of the frame.

8. An ammonium sulfate feeding device for preventing material blockage according to claim 1, 2 or 7, characterized in that: The angles between the four surfaces of the silo funnel and the horizontal plane are consistent in size, and the angles between the four surfaces of the silo funnel and the horizontal plane are ≥70°.

9. The ammonium sulfate feeding device for preventing material blockage according to claim 1, characterized in that: The square funnel is a square funnel, and the scraper plate is a rectangular scraper plate.

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