Dry ash sorting device with automatic unblocking function

Abstract

The invention provides a dry ash sorting device with an automatic unblocking function, and relates to the technical field of industrial fly ash treatment. Four supporting legs are fixedly arranged at the four corners of the bottom of the sorting box in a vertically downward mode correspondingly, and a coal inlet is vertically formed in one side of the upper end of the sorting box; a separation guide plate which is inclined inwards and downwards is arranged in an inner cavity of the separation box below the coal inlet; and two symmetrical fans are mounted at the top of the sorting box on one side of the coal inlet. The core sorting function of the device is achieved through cooperation of vibration dispersion and wind power sorting, specifically, coal ash is scattered into uniform thin curtains under driving of a vibration motor through an inclined sorting guide plate provided with inverted-V-shaped sorting fins, meanwhile, precise airflow provided by a draught fan is sprayed out of an air conveying pipe and acts on the tail end of the sorting guide plate, and the sorting effect is achieved. In this way, coarse-particle dry ash with the large specific gravity can effectively overcome airflow resistance and directly fall into the discharging box, fine particles are accurately captured by airflow, and therefore the sorting precision and efficiency are greatly improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of industrial fly ash treatment, and particularly relates to a dry fly ash sorting device with automatic blockage cleaning function. BACKGROUND

[0002] In the coal-fired power generation, metallurgy and chemical industries, fly ash (dry fly ash) generated after the combustion of coal powder needs to be effectively sorted and recovered. Traditional dry fly ash sorting methods mostly rely on simple gravity sedimentation or air sorting, and the sorting efficiency is limited, and it is difficult to accurately separate particles of different particle sizes and specific gravities. In addition, dry fly ash after sorting is prone to bridging, arching and blocking in the process of collection and discharge, especially in the hopper or pipeline, due to reasons such as material moisture, uneven particle size or electrostatic adsorption, which seriously affects the continuity and stability of production. Some existing sorting devices are often complex in structure, inconvenient to clean, and need manual intervention when stopped, which not only increases the labor intensity, but also reduces the equipment utilization rate. At the same time, if the dust-containing gas generated in the sorting process is directly discharged, it will cause environmental pollution, and the existing sorting equipment is often low in integration or poor in effect in gas-solid separation and dust collection. SUMMARY

[0003] The present application relates to a dry fly ash sorting device with automatic blockage cleaning function, which not only realizes efficient and accurate sorting of dry fly ash, but also fundamentally solves the problem of discharge blockage, and realizes the internal integration of dust collection and gas treatment, with the comprehensive advantages of good sorting effect, continuous and stable operation, high automation degree, convenient maintenance and the like.

[0004] The present application provides a dry fly ash sorting device with automatic blockage cleaning function, which specifically comprises: a sorting box; four supporting feet are vertically and downwardly fixed at the bottom corners of the sorting box, and a coal inlet is vertically formed at one side of the upper end of the sorting box; a sorting guide plate is arranged in the inner cavity of the sorting box below the coal inlet and inclined inward and downward; two symmetrical fans are installed on the top of the sorting box at one side of the coal inlet; a controller is hung on the side wall of one end of the sorting box; an outlet box is arranged in the inner cavity of the sorting box below the lower end of the sorting guide plate, an exhaust box is arranged in the inner cavity of the sorting box at the bottom of the side away from the sorting guide plate of the outlet box, and a dust collection box is arranged in the inner cavity of the sorting box at the bottom of the side of the exhaust box.

[0005] Optionally, a maintenance door is formed in the side wall of the sorting box corresponding to the sorting guide plate.

[0006] Optionally, a guide plate is fixedly arranged in the inner cavity of the sorting box at the side away from the sorting guide plate below the coal inlet, and the guide plate is inclined toward the sorting guide plate, so that the coal ash entering through the coal inlet falls on the guide plate and then slides onto the sorting guide plate.

[0007] Optionally, a vertical upper partition plate is arranged in the inner cavity of the sorting box on one side of the lower end of the sorting guide plate, the lower end of the upper partition plate is a bent plate structure bent towards the side of the sorting guide plate, a lower partition plate is fixedly installed upwards on the side of the discharge box away from the sorting guide plate, the lower partition plate is an inverted "L" shaped structure, one end of the lower partition plate close to the sorting guide plate is fixedly connected to the upper end of the discharge box, the other end of the lower partition plate is above the inner cavity of the dust collection box, the inner cavity of the exhaust box below the lower partition plate, and the communication cavity between the exhaust box and the dust collection box is the space between the lower partition plate and the dust collection box. The part of the coal ash falling through the sorting guide plate hits the upper partition plate and slides out of the discharge box, and the part of the coal ash is sorted along the lower partition plate into the dust collection box, the dry ash falls freely into the discharge box below, the coal ash particles entering the dust collection box settle therein, and the coal gas enters the exhaust box and is discharged.

[0008] Optionally, the air inlet end of the fan is provided with an air inlet filter box, a filter grid is arranged at the air inlet of the air inlet filter box, the air outlet end of the fan is connected to the air conveying pipe, and the other end of the air conveying pipe is connected to the position where the lower end of the sorting guide plate is opposite to the discharge box and faces the passage between the upper partition plate and the lower partition plate.

[0009] Optionally, the lower end of the discharge box is provided with a discharge pipe bent downwards on one side, the inner cavity of the discharge box is in a V-shaped structure with a wide upper end and a narrow lower end, "C" shaped ash guide sliding grooves are arranged in the side walls of the V-shaped cavity of the discharge box, a jam clearing auger is rotatably installed in the ash guide sliding groove, a reverse V-shaped isolation shield is arranged at the lower end of the rotating shaft of the jam clearing auger, a driving shaft is vertically arranged below the isolation shield, the upper end of the driving shaft is fixedly connected to a driving bevel gear, the lower end of the driving shaft penetrates through the outer wall of the discharge pipe and is rotatably connected to a driving motor, and a driven bevel gear is arranged at the lower end of the jam clearing auger and engaged with the driving bevel gear.

[0010] Optionally, the lower end of the dust collection box is provided with a detachable tray, and retention fins are arranged in the side walls of the inner cavity of the dust collection box.

[0011] Optionally, the exhaust box is in a structure with a wide upper end and a narrow lower end, the lower end of the exhaust box is provided with an exhaust pipe, and the exhaust pipe is in communication with an external waste gas treatment device.

[0012] Optionally, the sorting guide plate is provided with sorting fins in an inverted "V" shape, the sorting fins are distributed in an expanding manner from bottom to top, and the bottom of the sorting guide plate is provided with a vibration motor.

[0013] The present application provides a dry ash sorting device with automatic jam clearing function, which has the following advantages: Firstly, the core sorting function of the device is realized by vibration dispersion and wind sorting. Specifically, the sorting guide plate with inverted V-shaped sorting fins is obliquely arranged and driven by a vibration motor to scatter the coal ash into a uniform thin curtain. Meanwhile, the precise airflow provided by the fan is sprayed from the air conveying pipe and acts on the end of the sorting guide plate, which enables the coarse particles with large specific gravity to overcome the airflow resistance and directly fall into the discharge box, while the fine particles are accurately captured by the airflow, thereby greatly improving the precision and efficiency of sorting.

[0014] Secondly, the device innovatively designs a high-efficiency inertial separation and sedimentation collection system. The composite channel composed of the upper and lower partitions enables the fine particle mixture carried by the airflow to first undergo inertial collision on the upper partition for preliminary separation, and then be guided along the surface of the lower partition into the dust collection box. The retention fins arranged inside the dust collection box increase the airflow disturbance and particle residence time, promoting the effective sedimentation of fine particles. The separated clean gas is safely discharged through the exhaust box, realizing fine separation of gas and solid and effective collection of dust, and reducing the subsequent waste gas treatment load.

[0015] In particular, the device integrates a reliable automatic unblocking mechanism in the discharge box to address the industry problem of dry ash blockage. The driving motor drives the driving shaft and driving bevel gear, which in turn drives the unblocking auger installed in the ash guiding chute to rotate, continuously breaking the accumulation and bridging of dry ash at the bottom of the V-shaped cavity and the discharge pipe, ensuring continuous and smooth material conveying. The isolation screen at the lower end of the unblocking auger effectively prevents material pollution of the lower transmission components, improving the durability and reliability of the mechanism.

[0016] In addition, the overall design of the device fully considers the stability of operation and the convenience of maintenance. The two symmetrical fans and the air inlet filter box ensure the stability and cleanliness of the airflow, protect the fan and improve the sorting effect. The detachable tray at the lower part of the dust collection box facilitates regular cleaning of the collected fine ash. The maintenance door provided on the side wall of the sorting box greatly facilitates the inspection and maintenance of all internal components, especially the sorting guide plate and partition system. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings of the embodiments will be briefly introduced below.

[0018] The drawings in the following description only relate to some embodiments of the present application, but are not a limitation on the present application.

[0019] In the drawings: Figure 1 A first axial structure schematic view of the present application is shown; Figure 2 A second axial structure schematic view of the present application is shown; Figure 3The third axial view structural schematic diagram of the application is shown. Figure 4 The axial view structural schematic diagram of the sorting box side plate removal state of the application is shown. Figure 5 The axial view structural schematic diagram of the sorting box middle upper and lower partition plate separation state of the application is shown. Figure 6 The axial view structural schematic diagram of the discharge box part half cut separation state of the application is shown. Figure 5 The axial view structural schematic diagram of the discharge box part half cut separation state of the application is shown. Figure 7 The axial view structural schematic diagram of the discharge box part half cut separation state of the application is shown.

[0020] List of reference signs: 1, sorting box; 101, maintenance door; 102, deflector; 103, upper partition plate; 104, lower partition plate; 2, coal inlet; 3, fan; 301, air inlet filter box; 302, air conveying pipe; 303, filter grid; 4, controller; 5, discharge box; 501, discharge pipe; 502, ash guide chute; 503, unblocking auger; 5031, driven bevel gear; 504, isolation shutter; 505, drive shaft; 506, drive bevel gear; 507, drive motor; 6, dust collection box; 7, exhaust box; 701, exhaust pipe; 8, sorting guide plate; 801, sorting fin; 802, vibration motor. DETAILED DESCRIPTION

[0021] To make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions of the embodiments of the present application will be described below in connection with the drawings of the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. Based on the described embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort belong to the scope of protection of the present application.

[0022] Please refer to Figures 1 to 7 : Embodiment one: the present application proposes a dry ash sorting device with automatic unblocking function, comprising: a sorting box 1; four support feet are vertically and downwardly fixed at the bottom of the four corners of the sorting box 1, and a coal inlet 2 is vertically arranged at one side of the upper end of the sorting box 1; a sorting guide plate 8 is arranged in the inner cavity of the sorting box 1 below the coal inlet 2, and the sorting guide plate 8 is inclined inward and downward; two symmetrical fans 3 are installed on the top of the sorting box 1 at one side of the coal inlet 2; a controller 4 is hung on the side wall of one end of the sorting box 1; a discharge box 5 is arranged in the inner cavity of the sorting box 1 at the lower end of the sorting guide plate 8; an exhaust box 7 is arranged in the inner cavity of the sorting box 1 at the bottom of the side away from the sorting guide plate 8 of the discharge box 5; and a dust collection box 6 is arranged in the inner cavity of the sorting box 1 at the bottom of the side away from the discharge box 5 of the exhaust box 7.

[0023] The side wall of the sorting guide plate 8 is provided with a maintenance door 101.

[0024] The inner cavity of the sorting box 1 at the lower end of the coal inlet 2 is fixedly provided with a flow guide plate 102 away from the sorting guide plate 8, and the flow guide plate 102 is inclined towards the sorting guide plate 8. The coal ash entering through the coal inlet 2 falls on the flow guide plate 102 and then slides onto the sorting guide plate 8.

[0025] The inner cavity of the sorting box 1 at the lower end of the coal inlet 2 is fixedly provided with a flow guide plate 102 away from the sorting guide plate 8, and the flow guide plate 102 is inclined towards the sorting guide plate 8. The coal ash entering through the coal inlet 2 falls on the flow guide plate 102 and then slides onto the sorting guide plate 8.

[0026] The inner cavity of the sorting box 1 at the lower end of the coal inlet 2 is fixedly provided with a flow guide plate 102 away from the sorting guide plate 8, and the flow guide plate 102 is inclined towards the sorting guide plate 8. The coal ash entering through the coal inlet 2 falls on the flow guide plate 102 and then slides onto the sorting guide plate 8.

[0027] The lower end of the discharge box 5 is provided with a discharge pipe 501 bent downward to one side. The inner cavity of the discharge box 5 is V-shaped with a wide upper end and a narrow lower end. The two side walls of the V-shaped cavity of the discharge box 5 are respectively provided with "C"-shaped ash guide sliding grooves 502. A clear-up auger 503 is rotatably installed in the ash guide sliding groove 502. A reverse V-shaped isolation baffle 504 is arranged at the lower end of the rotating shaft of the clear-up auger 503. A driving shaft 505 is vertically installed below the isolation baffle 504. The upper end of the driving shaft 505 is fixedly connected with a driving bevel gear 506. The lower end of the clear-up auger 503 is provided with a driven bevel gear 5031 which is engaged with the driving bevel gear 506.

[0028] The lower end of the discharge box 5 is provided with a discharge pipe 501 bent downward to one side. The inner cavity of the discharge box 5 is V-shaped with a wide upper end and a narrow lower end. The two side walls of the V-shaped cavity of the discharge box 5 are respectively provided with "C"-shaped ash guide sliding grooves 502. A clear-up auger 503 is rotatably installed in the ash guide sliding groove 502. A reverse V-shaped isolation baffle 504 is arranged at the lower end of the rotating shaft of the clear-up auger 503. A driving shaft 505 is vertically installed below the isolation baffle 504. The upper end of the driving shaft 505 is fixedly connected with a driving bevel gear 506. The lower end of the clear-up auger 503 is provided with a driven bevel gear 5031 which is engaged with the driving bevel gear 506.

[0029] The exhaust box 7 is in a structure of wide top and narrow bottom, and the lower end of the exhaust box 7 is provided with an exhaust pipe 701 which is communicated with an external exhaust treatment device.

[0030] The sorting guide plate 8 is provided with sorting fins 801 in an inverted "V" shape, and the sorting fins 801 are distributed in an expanding manner from bottom to top, and the bottom of the sorting guide plate 8 is provided with a vibration motor 802.

[0031] The following further explains the function and effect of each structure mentioned above to help those skilled in the art better understand the technical solution: The sorting box 1 is the main structure, with support feet at its four corners to ensure stable placement. The coal inlet 2 is located on one side of the upper end of the sorting box 1 and is used to input the coal ash to be sorted. The sorting guide plate 8 below the coal inlet 2 is angled inward and downward to carry and sort the coal ash. Two symmetrical fans 3 installed on the top of the sorting box 1 provide the airflow required for sorting. A controller 4 mounted on the side wall regulates the overall operation. A maintenance door 101 is opened on the side wall of the sorting box 1 corresponding to the sorting guide plate 8 for easy internal maintenance. The guide plate 102 at the lower end of the coal inlet 2 is inclined towards the sorting guide plate 8, allowing the coal ash to slide down onto the sorting guide plate 8 after falling, achieving uniform distribution. The sorting guide plate 8 is equipped with sorting wings 801 arranged in an inverted V shape, which expand from bottom to top. Combined with the vibration motor 802 at the bottom of the sorting guide plate 8, the separation of dry ash and particles is promoted by vibration and airflow. An upper partition plate 103 is provided on one side of the lower end of the sorting guide plate 8. The lower end of the upper partition plate 103 is a folded plate structure that bends towards the sorting guide plate 8. It cooperates with the lower partition plate 104 on the discharge box 5 to form a separation channel. The lower partition plate 104 has an inverted L-shaped structure. One end is connected to the upper end of the discharge box 5, and the other end is located above the inner cavity of the dust collection box 6. During the sorting process, some coal ash hits the upper partition plate 103 and slides down to the discharge box 5, while the other part enters the dust collection box 6 along the lower partition plate 104, realizing the effective separation of dry ash and particles. The gas enters the exhaust box 7 through the gap between the lower partition plate 104 and the dust collection box 6. The air inlet of the blower 3 is equipped with an air inlet filter box 301. The filter grid 303 of the air inlet filter box 301 filters impurities in the air and protects the blower 3. The air outlet of the blower 3 delivers the airflow to the lower end of the sorting guide plate 8 and the discharge box 5 through the air delivery pipe 302. The airflow is directed towards the channel between the upper partition plate 103 and the lower partition plate 104 to enhance the sorting effect. The discharge box 5 is used to collect dry ash. Its lower discharge pipe 501 facilitates material discharge. The upper part of the inner cavity has a V-shaped structure that is wider at the top and narrower at the bottom. A clearing auger 503 is rotatably installed in the ash guide grooves 502 in both side walls. The lower end of the clearing auger 503 is equipped with a driven bevel gear 5031, which meshes with the drive bevel gear 506 at the upper end of the drive shaft 505. The drive shaft 505 is driven by a drive motor 507, which drives the clearing auger 503 to rotate through the bevel gear transmission, automatically clearing accumulated dry ash to prevent blockage. The isolation baffle 504 at the lower rotating shaft of the clearing auger 503 prevents material from entering the drive components. The dust collection box 6 is used to collect settled particles. Its lower removable tray is easy to clean. The retention fins in both side walls of the inner cavity extend the particle residence time and promote sedimentation. The exhaust box 7 has a structure that is wider at the top and narrower at the bottom. Its lower exhaust pipe 701 is connected to external waste gas treatment equipment for safe gas discharge. The entire device achieves efficient sorting through the sorting guide plate 8, fan 3 and baffle structure. The anti-blockage auger 503 automatically clears blockages to ensure continuous operation. The dust collection box 6 and exhaust box 7 handle particles and gases. The structure is reasonable and easy to maintain.

[0032] The working principle of the embodiment: the coal ash material is put into the device through the coal inlet 2, first falls on the inclined guide plate 102, and uniformly slides to the upper end of the sorting guide plate 8 after being guided by the guide plate 102. The sorting guide plate 8 vibrates under the drive of the bottom vibration motor 802, and the sorting fins 801 in the inverted V shape on it expand in turn to scatter and thin the falling coal ash, forming a uniform material curtain. At this time, the two symmetrically arranged fans 3 are started, the external air is filtered by the filter grid 303 of the air inlet filter box 301, pressurized by the fan 3, and delivered to the lower end outlet of the sorting guide plate 8 through the air conveying pipe 302, and the airflow direction is aligned with the narrow channel between the upper baffle 103 and the lower baffle 104. Under the joint action of vibration and upward airflow, the coal ash is sorted: the dry ash particles with larger specific gravity and larger particle size are directly overflown in the airflow area under the action of gravity and freely fall into the discharge box 5 below; and the fine particles with lighter specific gravity are wrapped and carried by the upward airflow and move upward and laterally with the airflow.

[0033] The fine particles carried by the airflow first hit the baffle structure of the upper baffle 103, and part of the particles separate due to inertia and slide into the discharge box 5. The remaining gas-solid mixture moves along the surface of the inverted L-shaped lower baffle 104 through the guide channel formed between the lower end of the upper baffle 103 and the upper end of the lower baffle 104, and finally enters the upper space of the dust collection box 6. In the dust collection box 6, due to the expansion of the flow cross section, the airflow velocity is reduced, and the retention fins arranged on the inner wall further disturb the airflow and prolong the particle residence time, so that the fine particles can gradually settle and be collected at the bottom of the box. The gas after the particles are separated enters the exhaust box 7 downward through the interval channel between the lower baffle 104 and the side wall of the dust collection box 6, and the exhaust box 7 adopts a structure of wide at the top and narrow at the bottom to help stabilize the airflow. Finally, the gas is introduced to the external waste gas treatment system through the exhaust pipe 701.

[0034] In the dry ash collection part, the dry ash falling into the discharge box 5 converges to the bottom in the V-shaped cavity with wide top and narrow bottom. To prevent dry ash from bridging or clogging at the discharge pipe 501 at the bottom of the V-shaped cavity, the drive motor 507 is started to drive the drive shaft 505 to rotate, and the power is transmitted to the two unblocking augers 503 through the intermeshing drive bevel gears 506 and driven bevel gears 5031. The unblocking auger 503 rotates in the C-shaped ash guide chute 502 to continuously transport the possible accumulated dry ash downward, ensuring smooth discharge. The isolation baffle 504 at the lower end of the unblocking auger 503 effectively prevents the material from entering the gear transmission part below. The bottom of the dust collection box 6 is provided with a detachable tray for easy periodic removal of the settled and collected fine particles. The entire working process is coordinated and controlled by the controller 4, and the maintenance door 101 provides convenience for internal maintenance.

[0035] In this paper, the following points need attention: 1. The drawings of the embodiments of the present application only relate to the structures involved in the embodiments of the present application, and other structures can refer to the general design.

[0036] 2. In the case of no conflict, the embodiments of the present application and the features in the embodiments can be combined with each other to obtain new embodiments.

[0037] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A dry ash sorting device with automatic clogging removal, comprising: The utility model provides a kind of coal sorting box, including sorting box (1), four support feet are vertically downwards fixed respectively in the bottom four corners of the sorting box (1), and the upper end of the sorting box (1) is vertically provided with coal inlet (2) in one side;Characterized by, sorting guide plate (8) is arranged in the inner chamber of the sorting box (1) below the coal inlet (2) and inclined to inner lower side;Two symmetrical fans (3) are installed on the top of the sorting box (1) in one side of the coal inlet (2);Controller (4) is hung on the side wall of the sorting box (1) in one end;Discharge box (5) is arranged in the inner chamber of the sorting box (1) in lower end of the sorting guide plate (8), exhaust box (7) is arranged in the bottom of the sorting box (1) in one side of the discharge box (5) away from the sorting guide plate (8), and the inner chamber bottom of the sorting box (1) in other side of the exhaust box (7) is provided with dust collecting box (6).

2. The dry ash sorting device with automatic unblocking function according to claim 1, characterized in that, The side wall of the sorting box (1) corresponding to the sorting guide plate (8) is provided with a maintenance door (101).

3. The dry ash sorting device with automatic unblocking function according to claim 1, characterized in that, The inner chamber of the sorting box (1) in lower end of the coal inlet (2) is fixedly provided with a guide vane (102) in one side away from the sorting guide plate (8), the guide vane (102) is inclined to the sorting guide plate (8), and the coal ash entering through the coal inlet (2) falls on the guide vane (102) and then slides onto the sorting guide plate (8).

4. The dry ash sorting device with automatic unblocking function according to claim 1, characterized in that, The inner chamber of the sorting box (1) in one side of lower end of the sorting guide plate (8) is vertically provided with an upper baffle (103), the lower end of the upper baffle (103) is a bent plate structure bent to one side of the sorting guide plate (8), a lower baffle (104) is fixedly installed upward in one side edge of the discharge box (5) below the upper baffle (103) away from the sorting guide plate (8), the lower baffle (104) is an inverted "L" structure, one end of the lower baffle (104) close to the sorting guide plate (8) is fixedly connected with the upper end of the discharge box (5), the other end of the lower baffle (104) is above the inner chamber of the dust collecting box (6), the inner chamber of the exhaust box (7) is directly below the lower baffle (104), the communication cavity between the exhaust box (7) and the dust collecting box (6) is the interval between the lower baffle (104) and the dust collecting box (6), part of the coal ash falling through the sorting guide plate (8) hits the upper baffle (103) and slides out of the discharge box (5), part of the coal ash is sorted and enters the dust collecting box (6) along the lower baffle (104), the dry ash falls into the discharge box (5) below, the coal ash particles entering the dust collecting box (6) settle therein, and the coal gas enters the exhaust box (7) and is discharged.

5. The dry ash sorting device with automatic unblocking function according to claim 4, characterized in that, The air inlet end of the fan (3) is provided with an air inlet filter box (301), the air inlet of the air inlet filter box (301) is provided with a filter grid (303), the air outlet end of the fan (3) is connected with a gas conveying pipe (302), and the other end of the gas conveying pipe (302) is connected to the communication position between the lower end of the sorting guide plate (8) and the discharge box (5) and faces the passage between the upper baffle (103) and the lower baffle (104).

6. The dry ash sorting device with automatic unblocking function according to claim 1, characterized in that, The lower end of the discharge box (5) is provided with a discharge pipe (501) bent to one side and downward, the upper end of the inner cavity of the discharge box (5) is V-shaped structure with wide upper and narrow lower, the two side walls of the V cavity of the discharge box (5) are respectively provided with "C"-shaped ash guide chute (502), the ash guide chute (502) is rotatably installed with a clear jam auger (503), the lower end of the clear jam auger (503) is provided with a reverse V-shaped isolation baffle (504), the isolation baffle (504) is vertically installed with a drive shaft (505) below, the upper end of the drive shaft (505) is fixedly connected with a drive bevel gear (506), the lower end of the drive shaft (505) penetrates through the outer wall of the discharge pipe (501) and is rotatably connected with a drive motor (507), the lower end of the clear jam auger (503) is provided with a driven bevel gear (5031), the driven bevel gear (5031) is engaged with the drive bevel gear (506).

7. The dry ash sorting device with automatic unblocking function according to claim 1, characterized in that, The lower end of the dust collecting box (6) is provided with a detachable tray, the two side walls of the inner cavity of the dust collecting box (6) are respectively provided with a retention fin.

8. The dry ash sorting device with automatic unblocking function according to claim 1, characterized in that, The exhaust box (7) is wide at the upper end and narrow at the lower end, the lower end of the exhaust box (7) is provided with an exhaust pipe (701), the exhaust pipe (701) is communicated with an external waste gas treatment device.

9. The dry ash sorting device with automatic unblocking function according to claim 1, characterized in that, The sorting guide plate (8) is provided with sorting fins (801) distributed in reverse "V" shape, the sorting fins (801) are distributed in sequence from small to large from bottom to top, and the bottom of the sorting guide plate (8) is provided with a vibration motor (802).

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