A chute device for treating air-cooled steel slag

Abstract

The present invention discloses a chute device for treating air-quenched steel slag in the technical field of steelmaking, which includes a collection part and a chute main body; openings are provided at both ends of the chute main body, and the diameter of the opening at the rear end of the chute main body is larger than that of the opening at the front end of the chute main body; bolts are provided on both side walls of the chute main body, and a plurality of connecting parts are fixedly connected to the bottom of the chute main body; a connecting cylinder is communicated with the opening at the front end of the chute main body. By accelerating the conveying speed of the molten slag and dividing the molten slag into multiple columnar molten slag flows, the contact area between the molten slag and the high-speed air is increased, and the adhesion of the molten slag is reduced; by the left and right swinging of the backflush plate, the residence time of the high-speed air in the relative space between the backflush plate and the air pipe is increased, and the granulation efficiency of the molten slag is improved; and the backflush plate can push the granulated slag to move towards the high-speed air side to perform secondary granulation on the granulated slag; through the separation component, solid-gas separation is carried out and the heat energy is utilized, which is environmentally friendly and practical, and realizes the multi-stage utilization of the chute in the treatment of air-quenched steel slag.

Description

Technical Field

[0001] The invention belongs to the technical field of steelmaking, in particular to a chute device for treating air-quenched steel slag. Background Art

[0002] At present, the main slag treatment processes include hot pouring, pan pouring, hot stewing, water quenching, drum, wind quenching and granulation wheel. Among them, the wind quenching method has become one of the important research directions in the industry because of its advantages of small particle size, narrow particle size distribution range, fastest condensation speed, most thorough digestion of free calcium oxide, uniform distribution of various crystal phases, and very fine grains. The process flow of the wind quenching method is: pour the high-temperature molten slag from the slag pot into the slag flow trough, and blow it into granules by high-speed air at the outlet of the slag flow trough; for the slag particles that fall nearby (usually within 8m) and are still semi-solid on the surface, additional cooling is adopted to avoid adhesion; the slag particles that fall far away have completely become solid and will not stick; when there is a heat recovery device, the high-temperature slag particles enter it to recover its sensible heat; the cooled slag particles are sent to the storage and transportation system and transported to the user.

[0003] The chute is an auxiliary device in the treatment of air-quenched steel slag. The existing chutes generally only achieve the purpose of transportation, which is not convenient for multi-stage utilization of the chute, resulting in low efficiency of the chute; therefore, it is necessary to propose a chute device for treating air-quenched steel slag. Summary of the invention

[0004] The purpose of the present invention is to propose a chute device for treating air-quenched steel slag, which increases the contact area between slag and high-speed air and reduces the adhesion of slag by accelerating the speed of conveying slag and dividing the slag into multiple columns of slag flow; by swinging the recoil plate left and right, the residence time of high-speed air in the relative space between the recoil plate and the air pipe is increased, thereby improving the slag granulation efficiency; and the recoil plate can push the granular slag to move toward the high-speed air side to granulate the granular slag again; through the separation component, solid and gas are separated and thermal energy is utilized, which is environmentally friendly and practical, and realizes the multi-stage utilization of the chute in the treatment of air-quenched steel slag.

[0005] In order to achieve the above-mentioned purpose, the technical scheme of the present invention is as follows: a chute device for treating air-quenched steel slag, comprising a collecting part and a chute body; both ends of the chute body are opened, and the diameter of the rear end opening of the chute body is larger than the diameter of the front end opening of the chute body; bolts are provided on both side walls of the chute body, and a plurality of connecting parts are fixedly connected to the bottom of the chute body;

[0006] A connecting cylinder is connected to the front end opening of the chute main body. One end of the connecting cylinder away from the chute main body penetrates through the collection part and is connected to the collection part; the diameter of the middle part of the connecting cylinder is smaller than that of its two ends; several partition plates are fixedly connected to the inner side wall of the lower part of the connecting cylinder; the outer side wall of the chute main body is fixedly connected to a first support through a connecting part; an air pipe is provided on the first support; one end of the air pipe away from the support penetrates through the collection part and is connected to the collection part, and the connection part of the air pipe and the collection part is located below the connecting cylinder;

[0007] The inner top wall of the collection part is provided with a backwashing plate and a power component for driving the backwashing plate to swing; a support component for supporting the collection part is provided on the collection part;

[0008] A discharge port is opened at the bottom of the collection part; a transition cylinder is connected to one side of the collection part away from the connecting cylinder; a connecting pipe is connected to one side of the transition cylinder away from the collection part, and a separation component is connected to one end of the connecting pipe away from the transition cylinder.

[0009] After adopting the above scheme, the following principle and beneficial effects are achieved:

[0010] Pour the high-temperature molten slag from the slag pot into the chute main body. The molten slag reaches the connecting cylinder through the chute main body. Since the diameter of the middle part of the connecting cylinder is smaller than that of its two ends, when the molten slag flows from the upper part of the connecting cylinder to the middle part, under the condition that the flowing hydraulic pressure remains unchanged, the cross-sectional area through which the molten slag passes becomes smaller, and the flowing speed of the molten slag in the middle part of the connecting cylinder becomes faster. The molten slag quickly flows from the middle part of the connecting cylinder to the lower part of the connecting cylinder, reducing the adhesion of the molten slag; when the molten slag reaches the lower part of the connecting cylinder, it is divided by multiple partition plates, so that the molten slag forms multiple columns of molten slag flow when flowing out from the lower part of the connecting cylinder; high-speed air is conveyed into the collection part through the air pipe. When the multiple columns of molten slag flow contact the high-speed air, the molten slag is blown into slag particles by the high-speed air. Here, the whole molten slag is divided into multiple columns of molten slag flow, which can increase the contact area between the whole molten slag and the high-speed air, thereby improving the granulation efficiency of the molten slag.

[0011] At the same time, the power component drives the backwashing plate to swing left and right repeatedly; due to the high temperature of the high-temperature molten slag, the left and right swing can cool the backwashing plate to a certain extent, and the left and right swing can also shake off the molten slag adhered to the backwashing plate.

[0012] When the lower part of the recoiling plate deflects to the left, the lower part of the recoiling plate approaches the connecting cylinder. At this time, the recoiling plate blocks the flow of high-speed air conveyed by the air pipe. The high-speed air stays in the space opposite to the air pipe and the recoiling plate for a longer time, thereby improving the granulation efficiency of the slag. The granulated slag particles fall to the lower part of the collection part and are discharged through the discharge port. When the recoiling plate swings left and right and the granulated slag contacts the recoiling plate, the recoiling plate pushes the granulated slag towards the high-speed air side, and the high-speed air granulates the granulated slag again. When the lower part of the recoiling plate deflects to the right, the lower part of the recoiling plate moves away from the connecting cylinder. At this time, the high-speed air conveyed from the air pipe granulates the molten slag and then transports it into the transition cylinder and the separation component. Some of the granulated slag particles are also driven by the high-speed air and transported into the transition cylinder and the separation component. Since the high-temperature molten slag has a relatively high temperature, there is also a relatively high temperature in the collection part. When some of the high-speed air and slag particles are transported into the separation component, the separation component separates the solid from the gas and utilizes the heat energy, which is environmentally friendly and practical.

[0013] The difference between the present invention and the prior art lies in: by accelerating the conveying speed of the molten slag and dividing the molten slag into multiple columns of molten slag flow, the contact area between the molten slag and the high-speed air is increased, and the situation of molten slag adhesion is reduced; by the left and right swinging of the recoiling plate, the residence time of the high-speed air in the space opposite to the recoiling plate and the air pipe is increased, and the granulation efficiency of the molten slag is improved; and the recoiling plate can push the granulated slag towards the high-speed air side to granulate the granulated slag again; through the solid-gas separation of the separation component and the utilization of the heat energy, it is environmentally friendly and practical.

[0014] Furthermore, a cavity is formed on the inner top wall of the collection part; the power component includes a motor, the motor is installed in the cavity, and a cam is fixedly connected to the output shaft of the motor; a connecting rod is fixedly connected to the side wall of the cavity, and the connecting rod is hinged to the recoiling plate; a spring is fixedly connected to the side wall of the cavity, and one end of the spring away from the side wall of the cavity is fixedly connected to the recoiling plate.

[0015] Beneficial effects: Driven by the motor, the cam rotates. When the protruding end of the cam rotates to contact the recoiling plate, the cam pushes the upper part of the recoiling plate to deflect to the left, and the spring is compressed. When the protruding end of the cam rotates away from the recoiling plate, under the push of the spring, the upper part of the recoiling plate deflects to the right. Repeating this process makes the recoiling plate swing left and right. Since the high-temperature molten slag has a relatively high temperature, the left and right swinging can cool the recoiling plate to a certain extent, and the left and right swinging can also shake off the molten slag adhering to the recoiling plate.

[0016] Furthermore, the support component includes a plurality of support legs, and one end of each support leg is fixedly connected to the collection part.

[0017] Beneficial effects: The support legs can support the collection part, preventing the collection part from directly contacting the support surface and causing damage to the collection part.

[0018] Furthermore, the upper part of the collection part is funnel-shaped.

[0019] Beneficial effects: The upper part of the collection part is arranged in a funnel shape, which is convenient for draining slag particles and preventing slag particles from accumulating at the corners of the collection part.

[0020] Furthermore, the side walls of the upper part of the collection part thicken successively from top to bottom.

[0021] Beneficial effects: Since the molten slag has a high temperature and the granular slag will cause a large impact force on the collection part when it drops, the purpose of thickening the side walls of the upper part of the collection part successively from top to bottom is to prevent the high-temperature granular slag from damaging the collection part during rapid impact.

[0022] Furthermore, the separation component includes a separation cylinder. A discharge pipe is provided at the top of the separation cylinder. The discharge pipe penetrates through the top of the separation cylinder, and the length of the discharge pipe located inside the separation cylinder is greater than the length of the connection part between the connecting pipe and the separation cylinder. A collection box is communicated with the bottom of the separation cylinder.

[0023] Beneficial effects: When part of the high-speed air and slag particles are conveyed into the separation cylinder, they are first blocked by the discharge pipe and move along the inner side wall of the separation cylinder in a tangential motion, forming a vortex and moving downward inside the separation cylinder. The granular slag in the high-speed air drops into the collection box under the influence of its gravity, and the high-speed air in the separation cylinder then moves upward and is discharged through the discharge pipe for recycling of heat energy.

[0024] Furthermore, a bottom plate is fixedly connected to one end of the first support away from the chute main body.

[0025] Beneficial effects: The bottom plate increases the contact area between the first support and the supporting surface, thereby increasing the stability of the first support during support.

[0026] Furthermore, an anti-slip pad is fixedly connected to the bottom of the bottom plate.

[0027] Beneficial effects: The anti-slip pad increases the friction between the bottom plate and the supporting surface, thereby further increasing the stability of the first support during support.

[0028] Furthermore, a heat exchange component is provided at the top of the transition cylinder.

[0029] Beneficial effects: Since the high-temperature molten slag has a high temperature, there is also a high temperature inside the collection part. At this time, the high-speed air conveyed to the transition cylinder also has a high temperature and can be heat-exchanged through the heat exchange component for recycling of heat energy.

[0030] Furthermore, an air groove is formed in the top wall of the collection part; a piston plate is slidably and horizontally fitted in the air groove, a cross bar is fixedly connected to the piston plate, and one end of the cross bar away from the piston plate penetrates through the side wall of the air groove and extends into the cavity to be fixedly connected with a push plate; a plurality of tension springs are fixedly connected to the push plate, and one end of the tension spring away from the push plate is fixedly connected to the side wall of the cavity; an air inlet pipe and an air outlet pipe for one-way ventilation are communicated with the air groove, and one end of the air inlet pipe away from the air groove penetrates through the collection part to communicate with the outside; one end of the air outlet pipe away from the air groove penetrates through the collection part to communicate with the backflush plate; the inside of the backflush plate is hollow and an air outlet is formed at the bottom.

[0031] Beneficial effects: When the cam rotates to contact the push plate, the cam pushes the push plate, the cross bar and the piston plate to move rightward, compresses the gas in the air groove and transports it to the air outlet pipe, and the gas is then transported through the air outlet pipe into the backflush plate to cool the backflush plate to a certain extent. The gas after heat exchange with the backflush plate is discharged through the air outlet at the bottom of the backflush plate; when the cam disengages from the push plate, the tension spring resets according to its own restoring force. Driven by the tension spring, the push plate, the cross bar and the piston plate move leftward, so that a negative pressure is generated in the air groove, and the outside air is adsorbed into the air groove through the air inlet pipe; this is repeated to cool the gas transported inside the backflush plate to a certain extent. Description of the Drawings

[0032] Figure 1 It is the front view of the embodiment of the present invention.

[0033] Figure 2 It is the cross-sectional view of the connecting cylinder of the embodiment of the present invention.

[0034] Figure 3 It is the connection schematic diagram of the cam and the backflush plate of the embodiment of the present invention.

[0035] Figure 4 It is the front view of the chute main body of the embodiment of the present invention.

[0036] Figure 5 It is the axonometric view of the chute main body of the embodiment of the present invention.

[0037] Figure 6 It is the bottom view of the chute main body of the embodiment of the present invention.

[0038] Figure 7 It is the cross-sectional view of the chute main body of the embodiment of the present invention. Detailed Embodiment

[0039] The following is further detailed through specific embodiments:

[0040] The reference numerals in the accompanying drawings of the description include: collection part 1, chute main body 2, support 3, support leg 4, air pipe 5, backflush plate 6, transition cylinder 7, heat exchanger 8, connecting pipe 9, separation cylinder 10, outlet pipe 11, partition plate 12, cam 13, spring 14, connecting cylinder 15, empty slot 16, intake pipe 17, outlet pipe 18, piston plate 19, cross bar 20, push plate 21, tension spring 22, connecting part 23, bolt 24.

[0041] Embodiment 1

[0042] The embodiment is basically as shown in the attached Figure 1-7 drawing:

[0043] A chute device for treating air-quenched steel slag includes a collection part 1 and a chute main body 2; openings are provided at both ends of the chute main body 2, and the diameter of the rear opening of the chute main body 2 is larger than that of the front opening of the chute main body 2; bolts 24 are provided on both side walls of the chute main body 2, and a plurality of connecting parts 23 are fixedly connected to the bottom of the chute main body 2;

[0044] A connecting cylinder 15 is communicated with the front opening of the chute main body 2, and one end of the connecting cylinder 15 far from the chute main body 2 penetrates through the collection part 1 and is communicated with the collection part 1; the diameter of the middle part of the connecting cylinder 15 is smaller than that of its two ends; a plurality of partition plates 12 are welded on the inner side wall of the lower part of the connecting cylinder 15; a first support 3 is welded on the outer side wall of the chute main body 2 through a connecting part 23; an air pipe 5 is provided on the first support 3; one end of the air pipe 5 far from the support 3 penetrates through the collection part 1 and is communicated with the collection part 1, and the connection part of the air pipe 5 and the collection part 1 is located below the connecting cylinder 15;

[0045] The inner top wall of the collection part 1 is provided with a backflush plate 6 and a power assembly for driving the backflush plate 6 to swing; a support assembly for supporting the collection part 1 is provided on the collection part 1;

[0046] An outlet is provided at the bottom of the collection part 1; a transition cylinder 7 is communicated with one side of the collection part 1 far from the connecting cylinder 15; a connecting pipe 9 is communicated with one side of the transition cylinder 7 far from the collection part 1, and one end of the connecting pipe 9 far from the transition cylinder 7 is communicated with a separation assembly.

[0047] A cavity is provided on the inner top wall of the collection part 1; the power assembly includes a motor (not shown in the figure), the model of the motor is preferably 37GB-3530, the motor is installed in the cavity, and a cam 13 is fixedly connected to the output shaft of the motor through a bolt; a connecting rod is fixedly connected to the side wall of the cavity through a bolt, and the connecting rod is hinged to the backflush plate 6; a spring 14 is fixedly connected to the side wall of the cavity through a bolt, and one end of the spring 14 far from the side wall of the cavity is fixedly connected to the backflush plate 6 through a bolt.

[0048] The support assembly includes a plurality of support legs 4, and one end of the support legs 4 is welded to the collection part 1.

[0049] The separation component includes a separation cylinder 10. A discharge pipe 11 is provided at the top of the separation cylinder 10. The discharge pipe 11 penetrates through the top of the separation cylinder 10, and the length of the discharge pipe 11 inside the separation cylinder 10 is greater than the length at the connection between the connecting pipe 9 and the separation cylinder 10. The bottom of the separation cylinder 10 is communicated with a collection box.

[0050] The specific implementation process is as follows:

[0051] Pour the high-temperature molten slag from the slag pot into the chute main body 2. The molten slag reaches the connection cylinder 15 through the chute main body 2. Since the diameter of the middle part of the connection cylinder 15 is smaller than that of its two ends, when the molten slag flows from the upper part to the middle part of the connection cylinder 15, under the condition of unchanged flow hydraulic pressure, the cross-sectional area through which the molten slag passes becomes smaller, and the flow velocity of the molten slag in the middle part of the connection cylinder 15 becomes faster. The molten slag quickly flows from the middle part of the connection cylinder 15 to the lower part of the connection cylinder 15, reducing the situation of molten slag adhesion. When the molten slag reaches the lower part of the connection cylinder 15, it is divided by multiple partition plates 12, so that the molten slag forms a multi-column molten slag flow when flowing out from the lower part of the connection cylinder 15. High-speed air is conveyed into the collection part 1 through the air pipe 5. When the multi-column molten slag flow contacts the high-speed air, the molten slag is blown into slag particles by the high-speed air. Here, the whole molten slag is divided into a multi-column molten slag flow, which can increase the contact area between the whole molten slag and the high-speed air, thereby improving the granulation efficiency of the molten slag.

[0052] At the same time, the cam 13 rotates driven by the motor. When the protruding end of the cam 13 rotates to contact the recoil plate 6, the cam 13 pushes the upper part of the recoil plate 6 to deflect to the left, and the spring 14 is compressed. When the protruding end of the cam 13 rotates away from the recoil plate 6, under the push of the spring 14, the upper part of the recoil plate 6 deflects to the right. Repeating like this makes the recoil plate 6 swing left and right. Due to the high temperature of the high-temperature molten slag, the left and right swings can cool the recoil plate 6 to a certain extent, and the left and right swings can also shake off the molten slag adhered to the recoil plate 6.

[0053] When the lower part of the recoil plate 6 deflects to the left, the lower part of the recoil plate 6 approaches the connecting cylinder 15. At this time, the recoil plate 6 blocks the flow of the high-speed air conveyed by the air pipe 5, and the high-speed air stays in the space opposite to the air pipe 5 by the recoil plate 6 for a longer time, thereby improving the efficiency of slag granulation. The granulated slag particles fall to the lower part of the collection part 1 and are discharged through the discharge port. When the recoil plate 6 swings left and right and the granulated slag contacts the recoil plate 6, the recoil plate 6 pushes the granulated slag towards the high-speed air side, and the high-speed air granulates the granulated slag again. When the lower part of the recoil plate 6 deflects to the right, the lower part of the recoil plate 6 moves away from the connecting cylinder 15. At this time, the high-speed air conveyed from the air pipe 5 granulates the molten slag and then conveys it into the transition cylinder 7 and the separation cylinder 10. Part of the granulated slag particles are also conveyed into the transition cylinder 7 and the separation cylinder 10 driven by the high-speed air. Since the high-temperature molten slag has a relatively high temperature, there is also a relatively high temperature in the collection part 1. When part of the high-speed air and slag particles are conveyed into the separation cylinder 10, they are first blocked by the outlet pipe 11, move along the inner side wall of the separation cylinder 10 in a tangential motion, form a vortex and move downward inside the separation cylinder 10. The slag particles in the high-speed air fall into the collection box under the influence of their gravity, and the high-speed air in the separation cylinder 10 moves upward again and is discharged through the outlet pipe 11 to recover and utilize the heat energy.

[0054] Example Two

[0055] The difference from the above embodiment is that the upper part of the collection part 1 is funnel-shaped.

[0056] The specific implementation process is as follows: The upper part of the collection part 1 is arranged in a funnel shape, which is convenient for draining the slag particles and preventing the slag particles from accumulating at the corners of the collection part 1.

[0057] Example Three

[0058] The difference from the above embodiment is that the side walls of the upper part of the collection part 1 gradually thicken from top to bottom.

[0059] The specific implementation process is as follows: Since the molten slag has a relatively high temperature and the granulated slag will cause a large impact on the collection part 1 when it falls, the purpose of gradually thickening the side walls of the upper part of the collection part 1 from top to bottom is to prevent the high-temperature granulated slag from damaging the collection part 1 during a rapid impact.

[0060] Example Four

[0061] The difference from the above embodiment is that a bottom plate is welded to the end of the first support 3 away from the chute main body 2.

[0062] The specific implementation process is as follows: The bottom plate increases the contact area between the first support 3 and the support surface, thereby increasing the stability of the first support 3 during support.

[0063] Example Five

[0064] The difference from the above embodiments is that an anti-slip pad is fixedly connected to the bottom of the bottom plate.

[0065] The specific implementation process is as follows: The anti-slip pad increases the friction between the bottom plate and the support surface, thereby further enhancing the stability when the first bracket 3 is supporting.

[0066] Embodiment Six

[0067] The difference from the above embodiments is that a heat exchange component is provided at the top of the transition cylinder 7. The heat exchange component in this embodiment selects a heat exchanger 8, and the model of the heat exchanger 8 is preferably A906199.

[0068] The specific implementation process is as follows: Since the high-temperature molten slag has a relatively high temperature, there is also a relatively high temperature in the collection part 1. At this time, the high-speed air transported to the transition cylinder 7 also has a relatively high temperature and can be heat-exchanged through the heat exchanger 8 to recover and utilize the heat energy.

[0069] Embodiment Seven

[0070] The difference from the above embodiments is that an empty groove 16 is formed in the top wall of the collection part 1; a piston plate 19 is slidably and horizontally fitted in the empty groove 16, a cross bar 20 is welded on the piston plate 19, and one end of the cross bar 20 away from the piston plate 19 penetrates through the side wall of the empty groove 16 and extends into the cavity and is welded with a push plate 21; a plurality of tension springs 22 are welded on the push plate 21, and one end of the tension spring 22 away from the push plate 21 is welded with the side wall of the cavity; the empty groove 16 is communicated with an air inlet pipe 17 and an air outlet pipe 18 for one-way ventilation, and the end of the air inlet pipe 17 away from the empty groove 16 penetrates through the collection part 1 and communicates with the outside; the end of the air outlet pipe 18 away from the empty groove 16 penetrates through the collection part 1 and communicates with the backflush plate 6; the inside of the backflush plate 6 is hollow and an air outlet is opened at the bottom.

[0071] The specific implementation process is as follows: When the cam 13 rotates to contact the push plate 21, the cam 13 pushes the push plate 21, the cross bar 20 and the piston plate 19 to move to the right, compresses the gas in the empty groove 16 and transports it to the air outlet pipe 18, and the gas is then transported to the inside of the backflush plate 6 through the air outlet pipe 18 to cool the backflush plate 6 to a certain extent. The gas after heat exchange with the backflush plate 6 is then discharged through the air outlet at the bottom of the backflush plate 6; when the cam 13 releases the contact with the push plate 21, the tension spring 22 returns to its original position according to its own restoring force. Driven by the tension spring 22, the push plate 21, the cross bar 20 and the piston plate 19 move to the left, so that a negative pressure is generated in the empty groove 16, and the outside air is adsorbed into the empty groove 16 through the air inlet pipe 17; this is repeated to cool the gas transported inside the backflush plate 6 to a certain extent.

[0072] The above are only embodiments of the present invention. Specific structures and common knowledge such as characteristics well known in the art are not described in detail herein. Those of ordinary skill in the art know all the common general technical knowledge in the technical field to which the invention pertains before the filing date or the priority date, are able to learn all the prior art in this field, and have the ability to apply conventional experimental means before this date. Those of ordinary skill in the art can, under the inspiration given in this application, combine their own abilities to improve and implement this solution. Some typical well-known structures or well-known methods should not become an obstacle for those of ordinary skill in the art to implement this application. It should be noted that for those skilled in the art, without departing from the structure of the present invention, several deformations and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the implementation effect of the present invention and the practicality of the patent. The protection scope claimed in this application should be based on the content of its claims, and the specific implementation manners and the like recorded in the specification can be used to interpret the content of the claims.

Claims

1. A chute device for treating air-quenched steel slag, characterized in that: It includes a collecting part and a chute body; both ends of the chute body are opened, and the diameter of the opening at the rear end of the chute body is larger than the diameter of the opening at the front end of the chute body; bolts are provided on both side walls of the chute body, and a plurality of connecting parts are fixedly connected to the bottom of the chute body; A connecting tube is connected to the front opening of the chute body, and one end of the connecting tube away from the chute body penetrates the collecting part and is connected to the collecting part; the diameter of the middle part of the connecting tube is smaller than the diameter of the two ends; a plurality of partitions are fixedly connected to the inner side wall of the lower part of the connecting tube; the outer side wall of the chute body is fixedly connected to the first bracket through the connecting part; an air pipe is arranged on the first bracket; one end of the air pipe away from the bracket penetrates the collecting part and is connected to the collecting part, and the connecting part between the air pipe and the collecting part is located below the connecting tube; The inner top wall of the collecting part is provided with a recoil plate and a power assembly for driving the recoil plate to repeatedly swing left and right; when the lower part of the recoil plate deflects to the left, the lower part of the recoil plate is close to the connecting tube, and the recoil plate blocks the flow of high-speed air transported by the air pipe; a supporting assembly for supporting the collecting part is provided on the collecting part; A discharge port is provided at the bottom of the collecting part; a side of the collecting part away from the connecting tube is connected to a transition tube; a side of the transition tube away from the collecting part is connected to a connecting pipe, and an end of the connecting pipe away from the transition tube is connected to a separation assembly; The inner top wall of the collecting part is provided with a cavity; the power assembly includes a motor, the motor is installed in the cavity, and a cam is fixedly connected to the output shaft of the motor; a connecting rod is fixedly connected to the side wall of the cavity, and the connecting rod is hinged to the recoil plate; a spring is fixedly connected to the side wall of the cavity, and one end of the spring away from the side wall of the cavity is fixedly connected to the recoil plate; A hollow groove is opened in the top wall of the collecting part; a piston plate is slidingly fitted in the hollow groove, a cross bar is fixedly connected to the piston plate, one end of the cross bar away from the piston plate passes through the side wall of the hollow groove and extends to the cavity where a push plate is fixedly connected; a number of tension springs are fixedly connected to the push plate, one end of the tension spring away from the push plate is fixedly connected to the side wall of the cavity; an air inlet pipe and an air outlet pipe for one-way ventilation are connected to the hollow groove, one end of the air inlet pipe away from the hollow groove passes through the collecting part and is connected to the outside world; one end of the air outlet pipe away from the hollow groove passes through the collecting part and is connected to the recoil plate; the recoil plate is hollow inside and an air outlet is opened at the bottom.

2. The chute device for treating air-quenched steel slag according to claim 1, characterized in that: The supporting assembly comprises a plurality of supporting legs, one end of which is fixedly connected to the collecting part.

3. The chute device for treating air-quenched steel slag according to claim 2, characterized in that: The upper part of the collecting part is funnel-shaped.

4. The chute device for treating air-quenched steel slag according to claim 3, characterized in that: The side wall of the upper part of the collecting part is thickened from top to bottom.

5. The chute device for treating air-quenched steel slag according to claim 4, characterized in that: The separation assembly includes a separation cylinder, a guide tube is provided at the top of the separation cylinder, the guide tube runs through the top of the separation cylinder, the length of the guide tube in the separation cylinder is greater than the length of the connection point between the connecting tube and the separation cylinder; the bottom of the separation cylinder is connected to a collection box.

6. The chute device for treating air-quenched steel slag according to claim 5, characterized in that: One end of the first bracket away from the chute body is fixedly connected with the bottom plate.

7. The chute device for treating air-quenched steel slag according to claim 6, characterized in that: The bottom of the base plate is fixedly connected with an anti-skid pad.

8. The chute device for treating air-quenched steel slag according to claim 7, characterized in that: A heat exchange component is arranged on the top of the transition tube.

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