On-line automatic material cleaning device for sealing water tank of sintering ring type cooler

Abstract

The utility model discloses an on-line automatic material cleaning device for a sealing water tank of a sintering ring type cooling machine. The on-line automatic material cleaning device comprises a cleaning mechanism and a silt suction mechanism, the sweeping mechanism comprises a sweeper, and the sweeper can be fixedly mounted at the bottom of the sealed water tank and is in a static state relative to the sealed water tank; the silt suction mechanism comprises a silt suction pipe, the water inlet end of the silt suction pipe can be fixedly installed at the bottom of the sealed water tank and located at the rear position of the sweeper, and the silt suction pipe is in a static state relative to the sealed water tank. A high-pressure spray gun is arranged at a sealing water tank at the upper part of a low-temperature section of the annular cooler and is used for carrying out blowing operation to damage an accumulated material structure which is tightly adhered to the bottom of the upper sealing water tank, so that the accumulated material is suspended; and then the water mixed with the accumulated materials is discharged to the outside through the silt suction pipe, so that the silt in the sealed water tank is cleaned.

Description

Technical Field

[0001] The utility model relates to the technical field of sintering ring type coolers, in particular to an online automatic material cleaning device for a sealed water tank of a sintering ring type cooler. Background Art

[0002] The blast type ring cooler is one of the important equipment in the sintering production process. It is used to cool the hot sintered ore. The cold air blown by the blowers evenly distributed around the ring cooler passes through the hot material layer from the lower part of the rotary body to exchange heat, and the heat is taken away by the exhaust gas to achieve the purpose of cooling the hot sintered ore. During the cooling process, in order to prevent the leakage of cooling air, effectively collect waste heat, and prevent the hot exhaust gas from being discharged into the atmosphere to cause air pollution, the ring cooler is required to be sealed.

[0003] The upper seal of the ring cooler currently generally adopts a water seal structure, such as the Chinese utility model patent "Ring Cooler, Publication No. CN204100827U". The sealing effect of this structure is better than that of rubber seals, sand seals and other sealing forms, which can effectively improve the sealing effect and greatly reduce the running resistance. The upper sealing water tank of the ring cooler is fixed on the railing of the rotating body trolley and moves in a circle with the rotating body. However, since the upper part of the water tank is open, the loose particles and dust on the production site will fall into the water tank under the action of the blower during the production process, forming sediment sludge at the bottom of the water tank. When the accumulated sludge reaches the height of the insulation cover plug plate, or even exceeds the insulation cover plug plate, it will hinder the operation of the ring cooler. The sludge that is not cleaned in time will form a hardened shape, causing the ring cooler to have too much running resistance, which may cause the equipment to stop and cause a greater equipment accident. Therefore, the sludge inside the upper sealing water tank of the ring cooler must be cleaned regularly. The existing treatment method is manual cleaning, which has high labor intensity and high safety hazards. Utility Model Content

[0004] The purpose of the utility model is to provide an online automatic cleaning device for the sealed water tank of a sintering ring cooler in view of the above problems, which can clean the tightly adhered accumulated materials at the bottom of the upper sealed water tank and perform periodic cleaning.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is:

[0006] A sintering ring cooler sealed water tank cleaning device comprises a cleaning mechanism and a sludge suction mechanism; the cleaning mechanism comprises a cleaner, which can be fixedly installed at the bottom of the sealed water tank and is in a stationary state relative to the sealed water tank; the sludge suction mechanism comprises a sludge suction pipe, the water inlet end of the sludge suction pipe can be fixedly installed at the bottom of the sealed water tank and is located behind the cleaner, and is in a stationary state relative to the sealed water tank.

[0007] The cleaner is a high-pressure spray gun equipped with a high-pressure nozzle, the high-pressure spray gun is connected to an external air source or an external water source, the high-pressure nozzle is in a stationary state and its nozzle faces the bottom wall of the sealed water tank. The high-pressure spray gun is a jet or water jet high-pressure spray gun.

[0008] As mentioned above, a high-pressure spray gun is installed at the upper sealed water tank of the low-temperature section of the ring cooler to perform a spraying operation to destroy the tightly adhered material structure at the bottom of the upper sealed water tank and suspend the accumulated material; then a sludge suction pipe is used to discharge the water mixed with the accumulated material to the outside, thereby cleaning the sludge inside the sealed water tank.

[0009] Based on the above scheme, in an improved scheme, the cleaning mechanism further includes a compressed air pipe I, an electric valve I, and an external air source, and the high-pressure spray gun is a jet-type high-pressure spray gun, which is connected to the external air source through the compressed air pipe I and the electric valve I, and the electric valve I is arranged on the compressed air pipe I. In this way, automatic start-stop control of cleaning is achieved by controlling the electric valve I.

[0010] Based on the above scheme, in an improved scheme, the sludge suction mechanism also includes a pump, which is arranged on the sludge suction pipe; thus, the sludge suction is automatically started and stopped by controlling the pump. Preferably, in combination with other driving devices, the sludge suction mechanism also includes a compressed air pipe II, an electric valve II, and an external air source; the pump is a pneumatic pump, which is connected to the external air source through the compressed air pipe II and the electric valve II, and the electric valve II is arranged on the compressed air pipe II; thus, the sludge suction is automatically started and stopped by controlling the electric valve II.

[0011] Based on the above scheme, in an improved scheme, the cleaning device also includes a water replenishment mechanism, which includes a water replenishment pipe, an external water source, and a water replenishment valve. The outlet end of the water replenishment pipe can be fixedly installed at the bottom of the sealed water tank, the water inlet end of the water replenishment pipe is connected to the external water source, and the water replenishment valve is arranged on the water replenishment pipe; in this way, water replenishment can be achieved while sucking silt and draining water to ensure the water level of the water tank. Preferably, the water replenishment mechanism also includes a water replenishment pump, which is arranged on the water replenishment pipe; in this way, the water replenishment pump is used to extract replenishment water from the low water level or low water pressure external water source. Preferably, the water replenishment mechanism also includes a liquid level gauge, which detects the water level of the sealed water tank, and the water replenishment pump is an automatic start-stop water pump equipped with a controller, and the liquid level gauge is connected to the controller of the automatic start-stop water pump; in this way, automatic detection of the water level in the water tank and water replenishment control are achieved.

[0012] Based on the above scheme, in an improved scheme, a valve controller is also included, the water supply valve is an electric valve III, and the valve controllers are all connected to the electric valve I, electric valve II and electric valve III. The electric valve controller is a product used in conjunction with the valve electric device to control the opening and closing of the electric valve. The valve controller is equipped with a communication module to connect to a remote server to achieve remote control. In this way, fully automatic cleaning, silt suction and water supply control can be achieved.

[0013] Based on the above scheme, in an improved scheme, the cleaning device also includes a protective cover, which is a cylindrical or funnel-shaped structure, and can be fixedly installed at the bottom of the sealed water tank, with the bottom end of the protective cover facing the bottom wall of the sealed water tank, and the nozzle of the high-pressure nozzle and the water inlet of the sludge suction pipe are both within the coverage of the bottom end of the protective cover. In this way, the spraying makes the accumulated materials under the water level suspended and the sludge suction range are all within the protective cover, which can effectively prevent water from splashing outwards due to the spraying.

[0014] Due to the adoption of the above technical solution, the utility model has the following beneficial effects:

[0015] The utility model discloses an online automatic cleaning device for a sealed water tank of a sintering ring cooler. A high-pressure spray gun is arranged at the upper sealed water tank of the low-temperature section of the ring cooler to perform a spraying operation, thereby destroying the tightly adhered material accumulation structure at the bottom of the upper sealed water tank and making the accumulated material suspended; and then a silt suction pipe is used to discharge the water mixed with the accumulated material to the outside, thereby realizing the cleaning of the silt inside the sealed water tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model in the installation state.

[0017] Figure 2 The utility model Figure 1 A partial enlarged view of .

[0018] In the attached drawings, 1 is a rotating body, 20 is a sealed water tank, 30 is a heat-insulating cover, 40 is a water replenishing mechanism, 50 is a cleaning mechanism, and 60 is a silt suction mechanism. DETAILED DESCRIPTION

[0019] Example 1

[0020] See also Figure 1 and Figure 2, an online automatic cleaning device for a sealed water tank of a sintering ring cooler in this embodiment 1 includes a cleaning mechanism 50 and a sludge suction mechanism 60; the cleaning mechanism 50 includes a cleaner, which can be fixedly installed at the bottom of the sealed water tank 20 and is in a stationary state relative to the sealed water tank; the sludge suction mechanism 60 includes a sludge suction pipe 17, the water inlet end of the sludge suction pipe 17 can be fixedly installed at the bottom of the sealed water tank 20 and is located at the rear of the cleaner, and is in a stationary state relative to the sealed water tank.

[0021] In one example, the sweeper can be a T-shaped scraper, the bottom width of which is adapted to the width of the water tank and the height of which is adapted to the gap between the plug plate (inserted into the water tank by the heat preservation cover) and the bottom wall of the water tank, and the top end of which is welded or bolted to the outer wall of the plug plate. In another example, the sweeper is a high-pressure spray gun equipped with a high-pressure nozzle, the high-pressure spray gun is connected to an external air source or an external water source, the high-pressure nozzle is in a stationary state and its nozzle faces the bottom wall of the sealed water tank; in this case, the high-pressure spray gun is a jet or water spray high-pressure spray gun.

[0022] As mentioned above, the present application is explained by taking the jet high-pressure spray gun 15 as an example. At this time, the high-pressure spray gun is a jet high-pressure spray gun, and the cleaning mechanism also includes a compressed air pipe 19, an electric valve 110, and an external air source. The jet high-pressure spray gun is connected to the external air source through the compressed air pipe 1 and the electric valve 1, and the electric valve 1 is arranged on the compressed air pipe 1. In this way, automatic start-stop control cleaning is achieved by controlling the electric valve 1. The electric valve 1, the external air source and its connection are all existing technologies. For example, the external air source is an air compressor, which will not be repeated here. Of course, the electric valve 1 can be changed to a manual valve to start or stop manually. Of course, if a water-spraying high-pressure spray gun is used, although it is not necessary to manually pump water or replenish water from a tap, as the purge continues to infuse water, it is also necessary to coordinate the sewage discharge flow of the suction pipe and the water inlet flow of the spray gun to keep the water level of the sealed water tank from being too high or too low. Therefore, the jet high-pressure spray gun is easier to adjust the injection pressure to impact and destroy the accumulated material, and it is beneficial to save water.

[0023] The water inlet end of the suction pipe 17 is installed on the outer wall of the plug plate through a pipe sleeve and bolts, and its water inlet is placed below the water level, and its water outlet is below the sealed water tank, and can be driven by artificial suction or lowering after filling with water to achieve instant sewage discharge. Of course, a manual valve can also be arranged to facilitate opening for sewage discharge.

[0024] As mentioned above, a high-pressure spray gun is installed at the upper sealed water tank of the low-temperature section of the ring cooler to perform a spraying operation to destroy the tightly adhered material structure at the bottom of the upper sealed water tank and suspend the accumulated material; then a sludge suction pipe is used to discharge the water mixed with the accumulated material to the outside, thereby cleaning the sludge inside the sealed water tank.

[0025] Example 2

[0026] On the basis of Example 1, this Example 2 has automatic start-stop control for silt suction, which is as follows:

[0027] See also Figure 1 and Figure 2 The sludge suction mechanism also includes a pump, which is arranged on the sludge suction pipe (its discharge end is defined as the sewage pipe 6); thus, the sludge suction is automatically started and stopped by controlling the pump. The pump can be a water pump or a pneumatic pump; preferably, in order to facilitate combination with other driving devices, the pump is a pneumatic pump 5, and the sludge suction mechanism also includes a compressed air pipe II 7 and an electric valve II8, and an external air source. The pneumatic pump is connected to the external air source through the compressed air pipe II and the electric valve II, and the electric valve II is arranged on the compressed air pipe II; thus, the sludge suction is automatically started and stopped by controlling the electric valve II.

[0028] Example 3

[0029] On the basis of Example 1 or 2, this Example 2 has a water replenishment function, which is as follows:

[0030] See also Figure 1 and Figure 2 The material cleaning device also includes a water replenishment mechanism 40, which includes a water replenishment pipe 18, an external water source, and a water replenishment valve. The water outlet end of the water replenishment pipe can be fixedly installed at the bottom of the sealed water tank (installed on the outer wall of the plug plate through a pipe sleeve and bolts, refer to the existing water replenishment structure), and the water inlet end of the water replenishment pipe is connected to the external water source (such as a water tower or a tap water pipe 11), and the water replenishment valve is arranged on the water replenishment pipe; in this way, water replenishment can be achieved while sucking silt and draining water to ensure the water level of the water tank.

[0031] Further preferably, the water replenishment mechanism also includes a water replenishment pump, which is arranged on the water replenishment pipe; in this way, the water replenishment pump is used to draw replenishment water from an external water source with low water level or low water pressure.

[0032] Further preferably, the water replenishment mechanism also includes a liquid level meter, which detects the water level of the sealed water tank. The water replenishment pump is an automatic start-stop water pump equipped with a controller, and the liquid level meter is connected to the controller of the automatic start-stop water pump; thus, automatic detection of the water tank water level and water replenishment control are achieved.

[0033] Example 4

[0034] Based on the embodiments 1, 2, and 3, the embodiment 3 has a fully automatic function, which is as follows:

[0035] See also Figure 1 and Figure 2The cleaning device also includes a valve controller, and the water supply valve is an electric valve III. The valve controllers are all connected to the electric valves I, II and III. The electric valve controller is a product used in conjunction with the valve electric device to control the opening and closing of the electric valve. The valve controller is equipped with a communication module to connect to a remote server to achieve remote control. The valve controller and remote connection control are both existing technologies and will not be described in detail here. In this way, fully automatic cleaning, silt suction and water supply control can be achieved.

[0036] Example 5

[0037] Based on the embodiments 1, 2, 3, and 4, the present embodiment 5 has a fully automatic function, which is as follows:

[0038] See also Figure 1 and Figure 2 The cleaning device also includes a protective cover, which is a funnel-shaped structure (such as a cylindrical or square cylindrical structure), and can be fixedly installed on the bottom of the sealed water tank (the top of the protective cover faces and is welded or bolted to the outer wall of the plug plate), and the bottom of the protective cover faces the bottom wall of the sealed water tank. The nozzle of the high-pressure nozzle and the water inlet of the silt suction pipe are both within the coverage of the bottom end of the protective cover. In this way, the spraying makes the accumulated materials under the water level suspended and the silt suction range are all within the protective cover, which can effectively prevent water from splashing outward due to the spraying.

[0039] As in the above-mentioned embodiments 1 to 5, the utility model mainly solves the problem of large workload and high safety hazard of manually cleaning the silt inside the upper sealed water tank of the ring cooler, and further designs an energy-saving and environmentally friendly online automatic cleaning device for the upper sealed water tank of the ring cooler. The following will further explain the optimal examples of all the above-mentioned feature combinations.

[0040] The automatic cleaning device for the silt deposited at the bottom of the upper sealed water tank of the ring cooler is a composite cleaning device for automatic online cleaning of silt deposited by means of compressed air high-pressure jet blowing and pneumatic pump silt suction.

[0041] The compressed air high-pressure blowing device (cleaning mechanism 50) is installed at the lower rear of the water inlet of the pneumatic pump. A high-pressure jet blower (jet high-pressure spray gun 15) is installed, and an external high-pressure air source (external air source part) is connected. An electric valve 10 is installed on the air source pipe (high-pressure air pipe) 9, and the high-pressure airflow is used to blow up and stir the materials accumulated at the bottom of the water tank.

[0042] The pneumatic pump sludge suction device (sludge suction mechanism 60) uses compressed air as a drive, and is connected to an external compressed air source (external air source), and an electric valve 8 is installed on the air source pipe (compressed air pipe) 7. The pneumatic pump sludge suction device is installed above the upper sealed water tank of the low-temperature section of the ring cooler, and is connected to the fixed seat 4 by bolts, and the fixed seat is fixed on the bracket of the insulation cover 30 of the ring cooler (it can even be installed on the ground), and is in a stationary state relative to the upper sealed water tank. One end of the sludge suction pipe 17 of the pneumatic pump sludge suction device is connected to the pneumatic pump, and the other end extends into the upper sealed water tank, leaving a certain distance and inclination angle with the bottom plate of the upper sealed water tank. The sludge discharge port of the pneumatic pump is connected to one end of the external discharge pipe (sewage pipe) 6, and the other end of the external discharge pipe is connected to the centralized sewage treatment point.

[0043] A protective cover 19 is installed and fixed around the inlet of the silt suction pipe of the pneumatic pump suction device to cover the silt suction pipe of the pneumatic pump and the nozzle 16 of the high-pressure blowing device (jet high-pressure spray gun 15). When the high-pressure blowing device is blowing and stirring, the accumulated materials settled at the bottom of the upper sealed water tank will be blown up and suspended inside the above-mentioned protective cover. At the same time, the pneumatic pump will work to suck the suspended materials and water around the silt suction pipe into the pump body and discharge them through the above-mentioned external discharge pipe.

[0044] At the low temperature section insulation cover of the ring cooler, an automatic water replenishing device for the upper sealed water tank is provided. The water replenishing pipe of the automatic water replenishing device is installed just above the upper sealed water tank and is connected and fixed to the insulation cover by a fixing plate. A liquid level gauge 14 is installed on the inner side of the fixing plate. The liquid level gauge 14 is arranged just above the upper sealed water tank and is used to detect the liquid level height of the water 3 in the water tank. When the above-mentioned pneumatic pump 5 is working, the water and materials in the water tank will be discharged together, causing the liquid level in the water tank to drop. In order to ensure the sealing effect of the ring cooler, when the liquid level gauge detects that the liquid level is lower than the lowest liquid level of the water tank, it will transmit a signal to the automatic water replenishing device (the controller 13 of the water replenishing pump) to perform real-time online water replenishment. When the liquid level reaches the highest liquid level of the water tank, the liquid level gauge detects the liquid level signal, and the automatic water replenishing device automatically stops replenishing water.

[0045] The action logic of the online automatic cleaning device of the sealed water tank of the ring cooler is controlled by the PLC system (the electric valve controller adopts PLC, and its connection and control of the electric valve are all existing technologies), which can realize remote control. The specific control process is as follows:

[0046] After the high-pressure jet purge electric valve is started, the jet will be blown to the bottom of the water tank. At the same time, the electric valve of the pneumatic pump sludge suction device is started, and the pneumatic pump starts to suck and discharge sludge. When the ring cooler rotary body runs one circle, the electric valve of the pneumatic pump sludge suction device is closed, and at the same time, the electric valve of the high-pressure jet purge is closed, which means that a cleaning cycle is completed. The cleaning interval can be set manually, and the online automatic cleaning operation can be carried out in sequence.

[0047] When the pneumatic pump is working, the water and materials in the water tank will be discharged together, causing the liquid level in the water tank to drop. When the liquid level meter detects that the liquid level is lower than the lowest liquid level in the water tank, the automatic water replenishing device replenishes water online in real time. When the liquid level reaches the highest liquid level in the water tank, the liquid level meter detects the liquid level signal, and the automatic water replenishing device automatically stops replenishing water.

[0048] The device is equipped with a high-pressure jet blower at the upper sealed water tank of the low-temperature section of the ring cooler to perform continuous blowing operations, destroying the tightly adhered material structure at the bottom of the upper sealed water tank, so that the accumulated material is suspended in the water tank. An automatic silt suction device with a pneumatic pump is installed at the upper sealed water tank of the low-temperature section of the ring cooler. The pneumatic pump is driven by a high-pressure air source to achieve periodic automatic cleaning of the tightly adhered material at the bottom of the upper sealed water tank, completely replacing manual labor. The device can better solve the problems of large amount of material accumulation and difficulty in cleaning in the upper sealed water tank of the ring cooler, and overcome the difficulties of large workload and high safety hazards in manual cleaning of accumulated materials. It does not require the modification of existing equipment and facilities, has a simple structure, small maintenance workload, and low cost.

[0049] It should be pointed out that the examples of the above-mentioned embodiments can be preferably combined with one or more of them according to actual needs, and multiple examples use a set of drawings to illustrate the combined technical features, which will not be described one by one here.

[0050] It should be noted that the orientation or position relationship indicated by the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation.

[0051] The above description is a detailed description and illustration of the preferred feasible embodiments of the utility model, but these descriptions are not intended to limit the scope of protection required by the utility model. All equivalent changes or modified changes completed under the technical teachings suggested by the utility model should fall within the scope of patent protection covered by the utility model.

Claims

1. An online automatic cleaning device for a sealed water tank of a sintering ring cooler, characterized in that: It includes a cleaning mechanism and a silt suction mechanism; the cleaning mechanism includes a sweeper, which can be fixedly installed at the bottom of the sealed water tank and is in a stationary state relative to the sealed water tank; the silt suction mechanism includes a silt suction pipe, the water inlet end of the silt suction pipe can be fixedly installed at the bottom of the sealed water tank and is located behind the sweeper, and is in a stationary state relative to the sealed water tank.

2. The online automatic cleaning device for the sealed water tank of a sintering ring cooler according to claim 1 is characterized by: The cleaner is a high-pressure spray gun equipped with a high-pressure nozzle, the high-pressure spray gun is connected to an external air source or an external water source, the high-pressure nozzle is in a stationary state and its nozzle faces the bottom wall of the sealed water tank.

3. The online automatic cleaning device for the sealed water tank of a sintering ring cooler according to claim 2 is characterized by: The cleaning mechanism also includes a compressed air pipe I, an electric valve I, and an external air source. The high-pressure spray gun is a jet-type high-pressure spray gun. The jet-type high-pressure spray gun is connected to the external air source through the compressed air pipe I and the electric valve I. The electric valve I is arranged on the compressed air pipe I.

4. The online automatic cleaning device for the sealed water tank of a sintering ring cooler according to claim 1 is characterized by: The silt suction mechanism also includes a pump, which is arranged on the silt suction pipe.

5. The online automatic cleaning device for the sealed water tank of a sintering ring cooler according to claim 4 is characterized by: The sludge suction mechanism also includes a compressed air pipe II, an electric valve II, and an external air source. The pump is a pneumatic pump, which is connected to the external air source through the compressed air pipe II and the electric valve II. The electric valve II is arranged on the compressed air pipe II.

6. The online automatic cleaning device for the sealed water tank of a sintering ring cooler according to claim 1 is characterized by: It also includes a water replenishment mechanism, which includes a water replenishment pipe, an external water source, and a water replenishment valve. The water outlet end of the water replenishment pipe can be fixedly installed at the bottom of the sealed water tank, the water inlet end of the water replenishment pipe is connected to the external water source, and the water replenishment valve is arranged on the water replenishment pipe.

7. The online automatic cleaning device for the sealed water tank of a sintering ring cooler according to claim 6, characterized in that: The water replenishment mechanism also includes a water replenishment pump, which is arranged on the water replenishment pipe.

8. The online automatic cleaning device for the sealed water tank of a sintering ring cooler according to claim 7, characterized in that: The water replenishment mechanism also includes a liquid level meter, which detects the water level of the sealed water tank. The water replenishment pump is an automatic start-stop water pump equipped with a controller, and the liquid level meter is connected to the controller of the automatic start-stop water pump.

9. The online automatic cleaning device for the sealed water tank of a sintering ring cooler according to claim 3, 5 or 6, characterized in that: It also includes a valve controller, the water supply valve is an electric valve III, and the valve controllers are connected to the electric valve I, the electric valve II and the electric valve III.

10. The online automatic cleaning device for the sealed water tank of a sintering ring cooler according to claim 2, characterized in that: It also includes a protective cover, which has a cylindrical, square or funnel-shaped structure. The protective cover can be fixedly installed on the bottom of the sealed water tank, with the bottom end of the protective cover facing the bottom wall of the sealed water tank. The nozzle of the high-pressure nozzle and the water inlet of the sludge suction pipe are both within the coverage range of the bottom end of the protective cover.

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