A coal feeder plugger device with automatic dredging function

Abstract

The application discloses a coal feeder plug plate device with an automatic dredging function, which comprises a connecting pipeline connected to a coal feeding pipeline and a plug plate intercepting device installed at the connecting pipeline, a bottom pipeline is installed at the bottom of the connecting pipeline, a discharge pipeline is obliquely arranged downward on the side of the bottom pipeline, a side support is fixed outside the connecting pipeline, a linear sliding table module is installed through the side support, a dredging device is borne through the linear sliding table module, and the dredging device passes through the plug plate intercepting device after ascending along the connecting pipeline.

Description

Technical Field

[0001] This invention relates to a feeder slide device with automatic unblocking function. Background Technology

[0002] The main combustion raw material in thermal power generation is pulverized coal. Pulverized coal is stored in a coal bunker and transported by a coal feeder. The coal feeder feeds the pulverized coal into a vertical pipe, and then, under the action of gravity, the pulverized coal falls into the furnace for combustion.

[0003] When there are enough pulverized coal particles in the furnace, a brief feeding stop is required. At this time, the coal feeder needs to be kept closed. However, the pulverized coal particles delivered by the coal feeder to the pipeline will fall and will not completely stop feeding immediately. Therefore, a gate valve needs to be installed at the front end of the furnace feeding port to block the pulverized coal by inserting the gate valve.

[0004] When the quality of the coal is poor, especially when the coal particles are small and the moisture content is high, closing the slide gate valve will cause the coal dust particles above the pipeline to accumulate at the top of the slide gate valve. The coal dust particles below cannot pass through, and the coal dust above is squeezed, causing the coal dust particles accumulated above the slide gate valve to stick together, resulting in a situation where normal material feeding cannot be achieved.

[0005] The current method involves tapping the pipe from the outside to unclog it through vibration, which is extremely inefficient.

[0006] Based on the above problems, we designed a feeder baffle plate device with automatic unblocking function that can actively unblock material after blockage occurs. Summary of the Invention

[0007] The technical problem to be solved by the present invention is to provide a feeder baffle plate device with automatic unblocking function that can actively unblock material after blockage occurs.

[0008] To solve the above problems, the present invention adopts the following technical solution:

[0009] A feeder insert device with automatic unblocking function includes a connecting pipe connected to a coal feeding pipeline and an insert interceptor installed at the connecting pipe. A bottom pipe is installed at the bottom of the connecting pipe, and a discharge pipe is inclined downward on the side of the bottom pipe. A side support is fixed to the outside of the connecting pipe, and a linear slide module is installed through the side support. The unblocking device is carried by the linear slide module. The unblocking device moves upward along the connecting pipe and passes through the insert interceptor.

[0010] Preferably, the insert plate interception device includes a horizontally arranged box and an insert plate inserted into the box. The box horizontally cuts off the connecting pipe. One end flange of the box is connected to a first end cap, and the other end flange is connected to a second end cap. A hydraulic push rod is connected through the second end cap flange. The insert plate is slidably fitted into the box, and the upper and lower end faces of the insert plate are in contact with the inner wall of the box. A vertical through hole is provided on the insert plate. When the through hole corresponds to the connecting pipe, pulverized coal passes through the connecting pipe. When the through hole is misaligned with the connecting pipe, the supply of pulverized coal is blocked by the insert plate. Two guide rods are installed on the outer end face of the insert plate, and a linear bearing that cooperates with the guide rods is installed on the second end cap. The unblocking device passes through the through hole.

[0011] Preferably, the bottom of the insert plate is provided with a stepped hole, and a cover plate is installed on the stepped surface of the stepped hole. The cover plate is fixed with screws, and a sealing gasket is sandwiched between the cover plate and the stepped hole. A convex ring is formed on the top of the cover plate, and a metal filter screen is fitted on the outside of the convex ring. The upper end of the metal filter screen abuts against the top surface of the stepped hole. A groove is formed on the bottom of the cover plate, and multiple first water outlet holes are distributed in a ring along the edge of the groove. The first water outlet holes are located inside the metal filter screen, and the outer wall of the metal filter screen maintains a distance from the hole wall of the stepped hole. Both guide rods are hollow guide rods, and the outer ends of the guide rods are connected to water supply hoses. One of the guide rods is provided with a second water outlet hole near the insert plate. A channel is cast inside the insert plate, and the other guide rod communicates with the channel, so that water entering from the other guide rod flows into the stepped hole through the channel and is located outside the metal filter screen. A water outlet pipe is provided on the outside of the first end cap.

[0012] Preferably, the first water outlet is an oblique hole, and water flows out of the first water outlet toward the inner wall of the connecting pipe.

[0013] Preferably, the through hole includes an upper hole and a lower hole. The upper hole is a tapered hole with its diameter gradually decreasing downwards. The upper end diameter of the upper hole is larger than the inner diameter of the connecting pipe, and the lower end diameter of the lower hole is smaller than the inner diameter of the connecting pipe.

[0014] Preferably, the unblocking device includes an unblocking shaft, an upper spiral blade, a lower spiral blade, a reducer, a servo motor, a first bracket, and a second bracket; a through hole is provided at the axis of the bottom pipe, and an inner sleeve coaxial with the through hole is welded to the inner bottom of the bottom pipe; the unblocking shaft is inserted upward into the connecting pipe from the through hole; an outer sleeve is welded to the outer wall of the unblocking shaft, and the outer sleeve is fitted outside the inner sleeve; the outer sleeve rotates along the inner sleeve, and the outer sleeve can also slide along the axial direction of the inner sleeve; the upper spiral blade is welded to the upper part of the unblocking shaft, and the lower spiral blade is welded to the outside of the outer sleeve; The first and second supports are both fixed on the linear slide module. The first and second supports move synchronously under the drive of the linear slide module. The unclogging shaft passes through the second support, and a bearing is fitted between the unclogging shaft and the second support. The reducer is fixedly installed through the first support, the unclogging shaft is fixed to the output end of the reducer, and the servo motor is fixed to the input end of the reducer. The outer diameter of the upper spiral blade is smaller than the inner diameter of the lower hole. The lower spiral blade cooperates with the connecting pipe and the bottom pipe. The upper spiral blade and the lower spiral blade maintain a distance greater than the thickness of the insert plate.

[0015] Preferably, the upper end of the unclogging shaft is machined to form a spiked end.

[0016] Preferably, a bottom cover is threaded to the bottom of the outer sleeve, and a sealing ring is sandwiched between the bottom cover and the outer sleeve. The thickness of the sealing ring gradually decreases towards the axial direction, and the sealing ring contacts the inner sleeve to form a seal.

[0017] Preferably, a sealing plate made of elastic rubber is sandwiched between the second end cap and the housing. The sealing plate has a first hole through which the guide rod passes, and a second hole through which the movable end of the hydraulic push rod passes. The first hole forms a seal with the guide rod, and the second hole forms a seal with the movable end of the hydraulic push rod.

[0018] The beneficial effects of this invention are:

[0019] One advantage is that this device can open and close the connecting pipe by sliding the insert plate.

[0020] Secondly, this device can clear the coal dust particles blocking the top of the baffle plate by moving the unblocking device upwards.

[0021] Thirdly, this device can be self-cleaned by washing with water, eliminating the need for manual cleaning and making maintenance more convenient.

[0022] Fourthly, this device has a simple structure, low cost, and is suitable for widespread use. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a perspective view of the present invention;

[0025] Figure 2 This is a 3D view of the insert plate;

[0026] Figure 3 This is a cross-sectional view of the present invention;

[0027] Figure 4 for Figure 3 Enlarged view at point A;

[0028] Figure 5 This is a bottom view of the insert plate;

[0029] Figure 6 This is a schematic diagram of the channel;

[0030] Figure 7 This is a partial schematic diagram of the device;

[0031] Figure 8 for Figure 3 Enlarged view at point B;

[0032] Figure 9 This is a three-dimensional view of the sealing plate. Detailed Implementation

[0033] All features disclosed in this specification, or all steps in all disclosed methods or processes, may be combined in any way, except for mutually exclusive features and / or steps.

[0034] Any feature disclosed in this specification (including any appended claims, abstract, and drawings) may be replaced by other equivalent or similar features, unless specifically stated otherwise. That is, unless specifically stated otherwise, each feature is merely one example of a series of equivalent or similar features.

[0035] In the description of this invention, it should be understood that the terms "one end", "the other end", "outer side", "upper", "inner side", "horizontal", "coaxial", "center", "end", "length", "outer end", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0036] Furthermore, in the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0037] In this invention, unless otherwise explicitly specified and limited, the terms "set," "socket," "connect," "through," and "plug-in" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0038] See Figure 1 The diagram shows a coal feeder insert device with automatic unblocking function, including a connecting pipe 1 connected to a coal feeding pipeline and an insert interceptor 2 installed at the connecting pipe 1. A bottom pipe 3 is installed at the bottom of the connecting pipe 1, and a discharge pipe 31 is inclined downward on the side of the bottom pipe 3. A side support 4 is fixed to the outside of the connecting pipe 1, and a linear slide module 5 is installed through the side support 4. The linear slide module 5 carries the unblocking device 6, and the unblocking device 6 passes through the insert interceptor 2 after moving upward along the connecting pipe 1.

[0039] This device is connected between the coal feeder and the boiler. Specifically, the upper end of the connecting pipe 1 is used to connect to the coal feeder pipe, and the discharge pipe 31 is used to connect to the furnace feeding port of the boiler.

[0040] When it is necessary to stop the supply of pulverized coal, the connecting pipe 1 is blocked by the insertion of the baffle interceptor 2, so that the pulverized coal is intercepted, thus completing the feeding of the furnace.

[0041] When it is necessary to restore the pulverized coal supply, simply open the baffle plate interceptor 2 to restore the supply.

[0042] When the coal powder particles are small in size and have high moisture content, they will form a pressing material after the baffle plate interceptor 2 is locked. The pressing material will cause the coal powder particles to stick together, resulting in the coal powder particles being blocked in the connecting pipe 1 and unable to be discharged after the baffle plate interceptor 2 is opened.

[0043] At this time, the unblocking device 6 is driven upward by the linear slide module 5. After the unblocking device 6 moves upward, it passes through the insert plate intercepting device 2 and unblocks the coal powder that is blocked.

[0044] See Figure 1 and Figure 2 As shown, the insert plate interception device 2 includes a horizontally arranged box 21 and an insert plate 22 inserted into the box 21. The box 21 horizontally cuts off the connecting pipe 1. One end flange of the box 21 is connected to a first end cap 23, and the other end flange is connected to a second end cap 24. A hydraulic push rod 25 is connected through the flange of the second end cap 24. The insert plate 22 is slidably fitted inside the box 21, and both the upper and lower end faces of the insert plate 22 are flush with the box 21. The inner wall of the plate 22 is fitted together, and a through hole 26 is vertically penetrating the plate 22. When the through hole 26 corresponds to the connecting pipe 1, the coal powder passes through the connecting pipe 1. When the through hole 26 is misaligned with the connecting pipe 1, the supply of coal powder is blocked by the plate 22. Two guide rods 27 are installed on the outer end face of the plate 22, and a linear bearing 28 that cooperates with the guide rods 27 is installed at the second end cap 24. The unblocking device 6 passes through the through hole 26.

[0045] In the above technical solution, a horizontally arranged box 21 is adopted, and a first end cover 23 and a second end cover 24 are respectively attached to both ends of the box 21. After the first end cover 23 is opened, the residual powder inside the box 21 can be cleaned by rinsing. After the second end cover 24 is opened, the connecting plate 22 can be removed together for inspection and maintenance.

[0046] The hydraulic push rod 25 is used for driving, which can provide greater driving force, making it easier to close or open the slide plate 22.

[0047] Compared to traditional insert plates, the insert plate 22 has an additional through hole 26. In traditional technology, the insert plate is a sealed flat plate. When it is closed, the insert plate will push some coal dust particles into the box. When the insert plate retracts, these coal dust particles cannot retract and need to be manually cleaned.

[0048] In this technical solution, a through hole 26 is used. When the through hole 26 is coaxial with the connecting pipe 1, the pulverized coal particles fall through the through hole 26. When it is necessary to close the insert plate 22, the through hole 26 gradually enters the housing 21, and the pulverized coal particles pushed in are briefly held in the through hole 26. When it is necessary to open the connecting pipe 1, the insert plate 22 returns to its original position, and the pulverized coal particles located in the through hole 26 are carried out from the housing 21. This structure avoids the technical problem of pulverized coal particles being pushed out and eliminates the need for manual cleaning.

[0049] The insert plate 22 needs to fit against the upper and lower inner walls of the housing 21 so that when the insert plate 22 is displaced, the coal powder particles on the surface of the insert plate 22 are scraped off by the housing 21.

[0050] See Figures 1 to 6 As shown, the bottom of the insert plate 22 is provided with a stepped hole 221. A cover plate 222 is installed on the stepped surface of the stepped hole 221 and is fixed with screws. A sealing gasket 223 is sandwiched between the cover plate 222 and the stepped hole 221. A protruding ring 224 is formed on the top of the cover plate 222. A metal filter screen 225 is fitted on the outside of the protruding ring 224. The upper end of the metal filter screen 225 abuts against the top surface of the stepped hole 221. A groove 226 is formed on the bottom of the cover plate 222. Multiple first water outlet holes 227 are distributed in a ring along the edge of the groove 226. The first water outlet holes 227 are located on the metal filter screen. Inside the metal filter 225, the outer wall of the metal filter 225 maintains a distance from the wall of the stepped hole 221; both guide rods 27 are hollow guide rods, and the outer ends of the guide rods 27 are connected to the water supply hose 29. One of the guide rods 27 has a second water outlet hole 271 machined near the insert plate 22. A channel 220 is cast inside the insert plate 22. The other guide rod 27 communicates with the channel 220, so that water entering from the other guide rod 27 flows into the stepped hole 221 through the channel 220 and is located outside the metal filter 225; a water outlet pipe 231 is provided on the outside of the first end cap 23.

[0051] The above technical solution mainly addresses the following technical issues:

[0052] First, during long-term operation, the insert plate will wear down, causing fine powder to accumulate inside the housing 21. At this time, water can be introduced through the guide rod 27 and discharged through the second water outlet 271 to rinse the inside of the housing 21. During the rinsing process, the insert plate 22 is kept moving back and forth to complete the double cleaning of the housing 21 and the insert plate 22. The wastewater generated during cleaning is discharged from the water outlet pipe 231.

[0053] Second, after the furnace stops burning, the entire coal supply system needs to be cleaned. At this time, the connecting pipe 21 is blocked by inserting the baffle plate 22, and water is supplied through the guide rod 27. The water enters the stepped hole 221 and sprays out from the first water outlet 227 to clean the connecting pipe 1. The cleaning water enters the furnace to clean the furnace.

[0054] Third, some pulverized coal has low combustion efficiency and requires additional combustion aid in the early stages of combustion, especially when the furnace temperature has not yet risen. At this time, after some pulverized coal is fed into the furnace, the baffle plate 22 can be closed and the combustion aid can be input through the guide rod 27. This combustion aid is sprayed into the lower part of the connecting pipe 1 through the first water outlet 227 and flows into the furnace from the discharge pipe 31, which plays a role in assisting the combustion of pulverized coal in the furnace.

[0055] See Figure 4 As shown, the first water outlet 227 is an oblique hole, and water flows out of the first water outlet 227 toward the inner wall of the connecting pipe 1.

[0056] This technical solution allows water or combustion accelerant sprayed from the first water outlet 227 to flow downwards along the inner wall of the connecting pipe 1 through the oblique hole, thereby improving the cleaning effect on the connecting pipe.

[0057] See Figure 2 and Figure 7 As shown, the through hole 26 includes an upper hole 261 and a lower hole 262. The upper hole 261 is a tapered hole with its diameter gradually decreasing downwards. The upper end diameter of the upper hole 261 is larger than the inner diameter of the connecting pipe 1, and the lower end diameter of the lower hole 262 is smaller than the inner diameter of the connecting pipe 1.

[0058] The design of the upper hole 261 and the lower hole 262 allows coal powder particles to enter smoothly through the upper hole 261 and exit through the lower hole 262, avoiding the problem of material jamming at the position of the insert plate 22.

[0059] See Figure 1 , Figure 3 and Figure 7As shown, the unblocking device 6 includes an unblocking shaft 61, an upper spiral blade 62, a lower spiral blade 63, a reducer 64, a servo motor 65, a first bracket 66, and a second bracket 67. A through hole 331 is provided at the axis of the bottom pipe 3. An inner sleeve 332 coaxial with the through hole 331 is welded to the inner bottom of the bottom pipe 3. The unblocking shaft 61 is inserted upward into the connecting pipe 1 through the through hole 331. An outer sleeve 661 is welded to the outer wall of the unblocking shaft 61. The outer sleeve 661 is sleeved on the outside of the inner sleeve 332. The outer sleeve 661 rotates along the inner sleeve 332 and can also slide along the axial direction of the inner sleeve 332. The upper spiral blade 62 is welded to the upper part of the unblocking shaft 61, and the lower spiral blade 63 is welded to the outer sleeve. The exterior of 661; the first bracket 66 and the second bracket 67 are both fixed on the linear slide module 5. The first bracket 66 and the second bracket 67 move synchronously under the drive of the linear slide module. The unblocking shaft 61 passes through the second bracket 67. A bearing 671 is fitted between the unblocking shaft 61 and the second bracket 67. The reducer 64 is fixedly installed through the first bracket 66. The unblocking shaft 61 is fixed to the output end of the reducer 64. The servo motor 65 is fixed to the input end of the reducer 64. The outer diameter of the upper spiral blade 62 is smaller than the inner diameter of the lower hole 262. The lower spiral blade 63 cooperates with the connecting pipe 1 and the bottom pipe 3. The upper spiral blade 62 and the lower spiral blade 63 maintain a distance greater than the thickness of the insert plate 22.

[0060] In the above technical solution, the unblocking shaft 61 can move upward under the drive of the linear slide module 5. When moving upward, the output of the servo motor 65 is maintained, so that the unblocking shaft 61 moves upward synchronously while rotating. During this process, the unblocking shaft passes upward through the guide hole 26 and contacts the blocked coal powder particles through the upper spiral blade 62, thus completing the unblocking at the blockage location.

[0061] To prevent the coal powder particles from being fed too quickly and causing too much coal powder particles to enter the furnace at once, this technical solution also includes a lower spiral blade 63. The rotation of the lower spiral blade 63 can orderly convey the coal powder particles downward.

[0062] When the feed rate of the coal feeder is too fast, the feed can be temporarily stopped by reversing the lower spiral blade 63 without closing the slide plate 22, making coal feeding management more convenient.

[0063] In the above technical solution, the combination of an outer sleeve and an inner sleeve can prevent the leakage of coal powder particles and ensure sealing.

[0064] See Figure 7As shown, the upper end of the unblocking shaft 61 is machined to form a spike end 6661.

[0065] The upper end of the spike 6661 is a spherical transition. In the above technical solution, the use of the spike 6661 can reduce the resistance when the unblocking shaft 61 is inserted upward into the blockage position.

[0066] See Figure 8 As shown, a bottom cover 662 is threaded to the bottom of the outer sleeve 661. A sealing ring 663 is sandwiched between the bottom cover 662 and the outer sleeve 661. The thickness of the sealing ring 663 gradually decreases towards the axial direction. The sealing ring 663 contacts the inner sleeve 332 to form a seal.

[0067] In the above technical solution, the sealing ring 663 can be squeezed by the upward rotation of the bottom cover 662, so that the sealing ring 663 can effectively seal between the outer sleeve 661 and the inner sleeve 332. When the outer sleeve 661 moves down, the powder particles adhering to the outer wall of the inner sleeve 332 can be scraped off by the sealing ring 663.

[0068] The design of gradually thinning the thickness further reduces the contact area between the sealing ring 663 and the outer wall of the inner sleeve 332, thereby reducing the rotational resistance of the unblocking shaft.

[0069] See Figure 1 and Figure 9 As shown, a sealing plate 241 made of elastic rubber is sandwiched between the second end cap 24 and the housing 21. The sealing plate 241 has a first hole 242 through which the guide rod 27 passes, and a second hole 243 through which the movable end of the hydraulic push rod 25 passes. The first hole 242 forms a seal with the guide rod 27, and the second hole 243 forms a seal with the movable end of the hydraulic push rod 25.

[0070] The above technical solution mainly focuses on sealing the movable ends of the guide rod 27 and the hydraulic push rod 25.

[0071] In practical applications, the contact points between the linear bearing and the guide rod 27 need to be sealed with sealing packing, and the contact points between the movable end of the hydraulic push rod 25 and the second end cover 24 also need to be sealed with sealing packing.

[0072] The aforementioned sealing plate 241 design forms the first layer of waterproofing, and together with the original sealing filler, it can prevent water or liquid leakage.

[0073] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A feeder slide plate device with automatic unblocking function, characterized in that: The system includes a connecting pipe (1) connected to a coal feeding pipe, and a baffle plate interceptor (2) installed at the connecting pipe (1). A bottom pipe (3) is installed at the bottom of the connecting pipe (1), and a discharge pipe (31) is provided on the side of the bottom pipe (3) at an angle downward. A side support (4) is fixed to the outside of the connecting pipe (1), and a linear slide module (5) is installed through the side support (4). A clearing device (6) is carried by the linear slide module (5). The clearing device (6) goes up along the connecting pipe (1) and passes through the baffle plate interceptor (2). The insert plate interception device (2) includes a horizontally arranged box (21) and an insert plate (22) inserted into the box (21). The box (21) horizontally cuts off the connecting pipe (1). One end flange of the box (21) is connected to a first end cap (23), and the other end flange is connected to a second end cap (24). A hydraulic push rod (25) is connected through the flange of the second end cap (24). The insert plate (22) is slidably fitted inside the box (21), and the upper and lower end faces of the insert plate (22) are both in contact with the box (21). The inner wall is fitted together, and a vertical through hole (26) runs through the insert plate (22). When the through hole (26) corresponds to the connecting pipe (1), the coal powder passes through the connecting pipe (1). When the through hole (26) is misaligned with the connecting pipe (1), the supply of coal powder is blocked by the insert plate (22). Two guide rods (27) are installed on the outer end face of the insert plate (22), and a linear bearing (28) that cooperates with the guide rods (27) is installed at the second end cap (24). The unblocking device (6) passes through the through hole (26). The through hole (26) includes an upper hole (261) and a lower hole (262). The upper hole (261) is a tapered hole with its diameter gradually decreasing downwards. The upper diameter of the upper hole (261) is larger than the inner diameter of the connecting pipe (1), and the lower diameter of the lower hole (262) is smaller than the inner diameter of the connecting pipe (1). The unblocking device (6) includes an unblocking shaft (61), an upper spiral blade (62), a lower spiral blade (63), a reducer (64), a servo motor (65), a first bracket (66), and a second bracket (67). A through hole (331) is provided at the axis of the bottom tube (3), and an inner sleeve (332) coaxial with the through hole (331) is welded to the inner bottom of the bottom tube (3). The unblocking shaft (61) is inserted upward from the through hole (331). The unclogging shaft (61) is inserted into the connecting pipe (1). An outer sleeve (661) is welded to the outer wall of the unclogging shaft (61). The outer sleeve (661) is fitted onto the outside of the inner sleeve (332). The outer sleeve (661) rotates along the inner sleeve (332). The outer sleeve (661) can also slide along the axial direction of the inner sleeve (332). The upper spiral blade (62) is welded to the upper part of the unclogging shaft (61), and the lower spiral blade (63) is welded to the outer sleeve (632). The outside of the sleeve (661); the first bracket (66) and the second bracket (67) are both fixed on the linear slide module (5), the first bracket (66) and the second bracket (67) move synchronously under the drive of the linear slide module, the unblocking shaft (61) passes through the second bracket (67), the unblocking shaft (61) and the second bracket (67) are fitted with a bearing (671), the reducer (64) is fixedly installed through the first bracket (66), the unblocking shaft (61) is fixed to the output end of the reducer (64), the servo motor (65) is fixed to the input end of the reducer (64); the outer diameter of the upper spiral blade (62) is smaller than the inner diameter of the lower hole (262); the lower spiral blade (63) cooperates with the connecting pipe (1) and the bottom pipe (3); the upper spiral blade (62) and the lower spiral blade (63) maintain a distance, which is greater than the thickness of the insert plate (22).

2. The feeder slide plate device with automatic unblocking function according to claim 1, characterized in that: The bottom of the insert plate (22) is provided with a stepped hole (221). A cover plate (222) is installed on the stepped surface of the stepped hole (221). The cover plate (222) is fixed with screws. A sealing gasket (223) is sandwiched between the cover plate (222) and the stepped hole (221). A convex ring (224) is formed on the top of the cover plate (222). A metal filter screen (225) is fitted on the outside of the convex ring (224). The upper end of the metal filter screen (225) abuts against the top surface of the stepped hole (221). A groove (226) is formed on the bottom of the cover plate (222). Multiple first water outlet holes (227) are distributed in a ring along the edge of the groove (226). The first water outlet holes (227) are located on the metal filter screen (224). Inside the metal filter (225), the outer wall of the metal filter (225) and the wall of the stepped hole (221) are kept apart; both guide rods (27) are hollow guide rods, and the outer ends of the guide rods (27) are connected to the water supply hose (29). One of the guide rods (27) has a second water outlet hole (271) near the insert plate (22). A channel (220) is cast inside the insert plate (22). The other guide rod (27) is connected to the channel (220), so that the water entering from the other guide rod (27) flows into the stepped hole (221) through the channel (220) and is located outside the metal filter (225); a water outlet pipe (231) is provided on the outside of the first end cap (23).

3. The feeder slide plate device with automatic unblocking function according to claim 2, characterized in that: The first water outlet (227) is an oblique hole, and the first water outlet (227) discharges water toward the inner wall of the connecting pipe (1).

4. The feeder slide plate device with automatic unblocking function according to claim 1, characterized in that: The upper end of the unblocking shaft (61) is machined to form a spiked end (6661).

5. The feeder slide plate device with automatic unblocking function according to claim 1, characterized in that: A bottom cover (662) is threaded to the bottom of the outer sleeve (661). A sealing ring (663) is sandwiched between the bottom cover (662) and the outer sleeve (661). The thickness of the sealing ring (663) gradually decreases towards the axial direction. The sealing ring (663) contacts the inner sleeve (332) to form a seal.

6. The feeder slide plate device with automatic unblocking function according to claim 2, characterized in that: A sealing plate (241) made of elastic rubber is sandwiched between the second end cap (24) and the housing (21). The sealing plate (241) has a first hole (242) through which the guide rod (27) passes, and a second hole (243) through which the movable end of the hydraulic push rod (25) passes. The first hole (242) forms a seal with the guide rod (27), and the second hole (243) forms a seal with the movable end of the hydraulic push rod (25).

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