A slag discharge system in strontium salt production and its recycling method

Abstract

The invention relates to the technical field of slag discharging system, and specifically to a slag discharging system in strontium salt production and a recycling method thereof. The slag discharging system comprises a conveying line with a waste slag inlet and outlet, a waste slag pushing structure is arranged in the conveying line, a heat dissipation cylinder is arranged in the middle of the conveying line, the heat dissipation cylinder is communicated with the inner cavity of the conveying line, an inner rotating cylinder with an opening is rotatably installed in the heat dissipation cylinder, the inner rotating cylinder is rotatably installed on a water changing seat through a bearing, the inner rotating cylinder is driven by a heat dissipation motor, a water cooling structure is connected to the water changing seat, a floating plate is lifted and installed on the water changing seat, and a pressing piece is connected to the floating plate; a two-way driving structure is arranged on the heat dissipation cylinder, a selective linkage structure is installed on the inner rotating cylinder, and the state of the linkage structure can be adjusted by the pressing piece when the floating plate is lifted and lowered, so that the inner rotating cylinder can adjust the rotation direction according to the height of the internal waste slag, and a heat dissipation pipe is vertically installed on the conveying line, so as to achieve the purpose of ensuring rapid heat dissipation of waste slag without polluting the environment and saving space.

Description

Technical Field

[0001] The invention relates to the technical field of slag discharging systems, in particular to a slag discharging system in strontium salt production and a recycling method thereof. Background Art

[0002] As an important chemical raw material, strontium salt is widely used in glass, ceramics, refractory materials, fireworks and firecrackers, medicine and other fields. With the increase in demand for strontium salt, the production process of strontium salt is becoming more and more diversified, but the production of strontium salt starts from the roasting of strontium ore.

[0003] During the roasting process of strontium ore, a large amount of waste slag is often produced. These waste slags are mainly composed of unreacted raw materials, impurities and by-products, and have certain components such as sulfates, chlorides, and fluorides. The treatment of these waste slags not only involves the needs of environmental protection, but also relates to the control of production costs. Usually, the waste slag generated in the production process has a high temperature. In order to dissipate the heat of the waste slag, the existing slag discharge system usually adopts an open structure or a lengthened conveyor line to meet the heat dissipation requirements, but it will cause environmental pollution and waste of space. If the waste slag cannot be effectively cooled, it will be detrimental to the subsequent recycling and reuse of the waste slag. Summary of the invention

[0004] The purpose of the present invention is to provide a slag discharge system and a recycling method for strontium salt production, so as to ensure rapid heat dissipation of waste slag without polluting the environment and saving space, so as to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a slag discharge system in strontium salt production, comprising a conveying line with a waste slag inlet and outlet, a waste slag pushing structure is arranged in the conveying line, and a heat dissipation cylinder is arranged in the middle of the conveying line, the heat dissipation cylinder is communicated with the inner cavity of the conveying line, and an inner rotating cylinder with an opening is rotatably installed in the heat dissipation cylinder, the inner rotating cylinder is rotatably installed on a water exchange seat through a bearing, and the inner rotating cylinder is driven by a heat dissipation motor, a water cooling structure is connected to the water exchange seat, and the water cooling structure is located in the inner rotating cylinder, a floating plate capable of sensing the height of the waste slag in the inner rotating cylinder is lifted and installed on the water exchange seat, and the floating plate is located in the middle of the inner rotating cylinder, and a pressure piece is connected to the floating plate; a two-way driving structure is arranged on the heat dissipation cylinder, and a selective linkage structure is arranged on the inner rotating cylinder, and the floating plate can adjust the state of the linkage structure through the pressure piece when the floating plate is lifted and lowered, so as to achieve the effect that the inner rotating cylinder adjusts the rotation direction according to the height of the internal waste slag, a heat dissipation pipe is vertically installed on the conveying line, and a filter is arranged on the top of the heat dissipation pipe, and an impact structure driven by the movement of the waste slag is arranged in the heat dissipation pipe.

[0006] Preferably, the conveyor line is a closed tubular structure, and a recovery bucket and a slag outlet are respectively provided at both ends of the conveyor line. A screw rod is rotatably installed in the conveyor line, and the screw rod is driven by a conveying motor. The heat dissipation cylinder is at the feeding end of the screw rod, and channels are provided on both sides of the heat dissipation cylinder.

[0007] Preferably, the inner drum is arranged in contact with the inner wall of the heat dissipation drum, and the opening ring is arranged on the inner drum, the water changing seat is arranged through the side wall of the heat dissipation drum, and the water changing seat is connected to the center of the inner drum.

[0008] Preferably, the water exchange seat is divided into a water inlet seat and a water outlet seat, and the water inlet seat and the water outlet seat are respectively connected to a water inlet pipe and a water outlet pipe, and a heat absorption pipe is connected between the water inlet pipe and the water outlet pipe.

[0009] Preferably, a limit seat is fixedly installed on the water exchange seat, and a lifting rod is slidably installed in the limit seat, a limit spring is fixedly connected to the lifting rod, and a floating plate is horizontally arranged on the lifting rod, and the pressing piece is connected to the floating plate through the lifting rod.

[0010] Preferably, the bidirectional driving structure includes a driving wheel and a driving ring, and both the driving wheel and the driving ring are rotatably mounted on the inner wall of the heat dissipation cylinder, the driving wheel is directly driven by the heat dissipation motor, and a rotating wheel is meshed between the driving wheel and the driving ring.

[0011] Preferably, the linkage structure includes a driven wheel and a driven ring, and the driven wheel and the driven ring are both mounted on the outer wall of the inner rotating cylinder through spring guide rod limiting movements, the surfaces of the driven wheel and the driven ring are provided with driven face teeth, and the surfaces of the driving wheel and the driving ring are provided with driving face teeth.

[0012] Preferably, the driven wheel and the driven ring are connected to the inner bevel seat and the outer bevel seat respectively through spring guide rods, and the inner bevel seat and the outer bevel seat are located inside the inner rotating cylinder, and the pressing piece can push the inner bevel seat or the outer bevel seat.

[0013] Preferably, at least one heat dissipation pipe is arranged on the conveyor line, and the impact structure includes a support installed in the middle of the heat dissipation pipe, and a rotating rod is rotatably installed on the support, a force-bearing ball is installed at the bottom end of the rotating rod, and the force-bearing ball is in the inner cavity of the conveyor line, and an impact assembly is installed at the top end of the rotating rod, and the impact assembly is located below the filter.

[0014] A method for recycling strontium salt in production, using a slag discharge system in strontium salt production, the method comprising the following steps:

[0015] S1, recovering the waste slag, connecting the slag discharge system with the strontium salt production device, recovering the waste slag, pushing the waste slag through the waste slag pushing structure, and quickly dissipating the heat in the process of flow, and then entering the waste slag separation equipment;

[0016] S2, waste residue separation, according to the composition and properties of the waste residue, it is divided into different types, including waste, inorganic salts, and metal impurities;

[0017] S3, physical and chemical pretreatment, crushing the waste residue that can be reused into smaller particles, then leaching the waste residue with a suitable solvent to extract inorganic salts and metal impurities, and then separating the corresponding components;

[0018] S4, solidification, recycling and reuse. For waste that cannot be extracted, a solidifying agent is used to treat it to reduce its permeability and solubility, and it is used in the production of building materials and ceramic products. For inorganic salts and metal salts, they are recycled and reused in the production of strontium salts or processed into products.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. The slag discharge system adopts a semi-closed conveying structure. Only a recovery bucket, a slag discharge port and a heat dissipation pipe with a filter are opened on the conveying line, which can effectively reduce dust escape and avoid environmental pollution. A heat dissipation cylinder is set in the middle of the conveying line. An inner drum is set in the heat dissipation cylinder. The openings distributed on the inner drum are used for feeding. After the waste slag enters the conveying line, the waste slag is pushed by the spiral rod. During the rotation of the inner drum, the waste slag can intermittently enter the inner drum, and the waste slag is quickly cooled by the water cooling structure set in the inner drum, and dispersedly enters the slag discharge port from the opening on the other side of the inner drum to complete the recycling work and ensure the cooling efficiency of the waste slag.

[0021] 2. The rotation direction of the inner drum can be automatically adjusted according to the slag discharge speed. Under normal circumstances, the waste slag is transported slowly to ensure the heat dissipation effect. When the waste slag temperature is relatively low, the amount of waste slag entering the inner drum can be larger. When it exceeds half of the inner drum, the floating plate will be pushed up to move the pressure piece upward. In conjunction with the two-way drive structure and the linkage structure, the direction of the inner drum is changed to quickly transport the waste slag.

[0022] 3. The conveyor line of the present invention is also provided with a heat dissipation pipe for auxiliary heat dissipation. Since the inner drum adopts intermittent feeding, the waste residue will be squeezed to a certain extent on the outside of the inner drum. The heat dissipation pipe mainly dissipates heat at this time. The filter screen arranged on the heat dissipation pipe can prevent dust from escaping, and when the waste residue flows, the dust on the inner wall of the heat dissipation pipe and the filter screen can fall off through the action of the impact structure to avoid affecting the heat dissipation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the closed state of the slag discharge system of the present invention.

[0024] Figure 2 It is a schematic diagram of the internal structure of the slag discharge system of the present invention.

[0025] Figure 3 It is a schematic diagram of the position of the heat dissipation tube structure of the present invention.

[0026] Figure 4 It is a schematic diagram of the conveyor line structure of the present invention.

[0027] Figure 5 It is a schematic diagram of the heat dissipation tube structure of the present invention.

[0028] Figure 6 It is a schematic diagram of the side wall of the heat dissipation tube structure of the present invention.

[0029] Figure 7 It is a schematic diagram of the inner drum structure of the present invention.

[0030] Figure 8 It is a schematic diagram of the side wall of the inner drum structure of the present invention.

[0031] Fig. 9 It is a schematic diagram of the heat absorption tube structure of the present invention.

[0032] Fig.10 Schematic diagram of the floating plate structure of the present invention.

[0033] Fig.11 It is a schematic diagram of the heat dissipation pipe structure of the present invention.

[0034] In the figure: 1. conveying line; 2. recovery bucket; 3. slag outlet; 4. screw rod; 5. conveying motor; 6. heat dissipation cylinder; 7. inner rotating cylinder; 8. opening; 9. water exchange seat; 10. heat dissipation motor; 11. water inlet pipe; 12. water return pipe; 13. heat absorption pipe; 14. limit seat; 15. lifting rod; 16. limit spring; 17. floating plate; 18. pressing piece; 19. driving wheel; 20. driving circle; 21. intermediate wheel; 22. driving face gear; 23. driven wheel; 24. driven circle; 25. driven face gear; 26. spring guide rod; 27. inner bevel seat; 28. outer bevel seat; 29. ​​heat dissipation pipe; 30. support; 31. rotating rod; 32. force ball; 33. impact assembly; 34. filter. DETAILED DESCRIPTION

[0035] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment. It should be noted that the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0036] See also Figures 1 to 11The present invention provides a technical solution: a slag discharge system in strontium salt production, comprising a conveyor line 1 with a waste slag inlet and outlet, a waste slag pushing structure is arranged in the conveyor line 1, and a heat dissipation cylinder 6 is arranged in the middle of the conveyor line 1, the heat dissipation cylinder 6 is communicated with the inner cavity of the conveyor line 1, and an inner rotating cylinder 7 with an opening 8 is rotatably installed in the heat dissipation cylinder 6, the inner rotating cylinder 7 is rotatably installed on a water exchange seat 9 through a bearing, and the inner rotating cylinder 7 is driven by a heat dissipation motor 10, the water exchange seat 9 is connected with a water cooling structure, and the water cooling structure is located in the inner rotating cylinder 7, and a sensor that can sense the inner rotating cylinder 7 is installed on the water exchange seat 9. A floating plate 17 at the height of the waste residue in the cylinder 7 is provided, and the floating plate 17 is located in the middle of the inner rotating cylinder 7, and a pressing piece 18 is connected to the floating plate 17; a two-way driving structure is provided on the heat dissipation cylinder 6, and a selective linkage structure is installed on the inner rotating cylinder 7. When the floating plate 17 is raised or lowered, the state of the linkage structure can be adjusted by the pressing piece 18, so that the inner rotating cylinder 7 can adjust the rotation direction according to the height of the internal waste residue. A heat dissipation pipe 29 is vertically installed on the conveyor line 1, and a filter screen 34 is provided on the top of the heat dissipation pipe 29, and an impact structure driven by the movement of the waste residue is provided in the heat dissipation pipe 29.

[0037] The conveyor line 1 is a closed tubular structure, and a recovery bucket 2 and a slag outlet 3 are respectively provided at both ends of the conveyor line 1. A screw rod 4 is rotatably installed in the conveyor line 1, and the screw rod 4 is driven by a conveying motor 5. The heat dissipation cylinder 6 is at the feeding end of the screw rod 4, and channels are provided on both sides of the heat dissipation cylinder 6. The inner rotating cylinder 7 is arranged to fit the inner wall of the heat dissipation cylinder 6, and the opening 8 is annularly arranged on the inner rotating cylinder 7. The water changing seat 9 is arranged to penetrate the side wall of the heat dissipation cylinder 6, and the water changing seat 9 is connected to the center of the inner rotating cylinder 7.

[0038] The slag discharge system of the present invention adopts a semi-closed conveying structure. The conveying line 1 is only provided with a recovery bucket 2, a slag discharge port 3 and a heat dissipation pipe 29 with a filter 34, which can effectively reduce dust emission and avoid environmental pollution. In order to ensure that the slag discharge system can effectively dissipate the heat of the waste slag, a heat dissipation cylinder 6 is arranged in the middle of the conveying line 1. An inner rotating cylinder 7 is arranged in the heat dissipation cylinder 6. The openings 8 distributed on the inner rotating cylinder 7 are used for feeding. After the waste slag enters the conveying line 1, the waste slag is pushed by the screw rod 4. During the rotation of the inner rotating cylinder 7, the waste slag can intermittently enter the inner rotating cylinder 7, which slows down the flow speed of the waste slag to a certain extent to complete the rapid heat dissipation work.

[0039] The water exchange seat 9 is divided into a water inlet seat and a water outlet seat, and the water inlet seat and the water outlet seat are respectively connected to a water inlet pipe 11 and a water outlet pipe, and a heat absorption pipe 13 is connected between the water inlet pipe 11 and the water outlet pipe.

[0040] In a semi-closed state, rapid heat dissipation of the waste residue is carried out through the water-cooling structure arranged inside the inner rotating cylinder 7. The waste residue entering the inner rotating cylinder 7 can rotate along with it, so as to contact multiple heat absorption tubes 13. The water inlet pipe 11 conveys cooling water into the water replacement seat 9. The cooling water flows in the heat absorption tubes 13, can take away the heat of the waste residue, and is recycled from the water return pipe 12, so that the waste residue can be quickly cooled and dispersed from the other opening 8 of the inner rotating cylinder 7 into the slag outlet 3 to complete the recycling work.

[0041] A limit seat 14 is fixedly installed on the water replacement seat 9, and a lifting rod 15 is slidably installed in the limit seat 14. A limit spring 16 is fixedly connected to the lifting rod 15, and a floating plate 17 is horizontally arranged on the lifting rod 15. The pressing member 18 is connected to the floating plate 17 through the lifting rod 15.

[0042] The conveying speed of the waste residue is restricted by the inner rotating cylinder 7. As Figure 2 shown, the inner rotating cylinder 7 is usually set to rotate clockwise to rotate the waste residue entering the inner rotating cylinder 7 upward to extend the heat dissipation time of the waste residue in the inner rotating cylinder 7. And the amount of the waste residue entering the conveying line 1 can be restricted by the recovery hopper 2. However, in some production processes, the temperature of the waste residue is relatively low, and the slag discharge speed can be increased. At this time, the amount of the waste residue entering the inner rotating cylinder 7 is larger. When it exceeds half of the inner rotating cylinder 7, it will push up the floating plate 17, so that the lifting rod 15 moves upward in the limit seat 14 against the elastic force of the limit spring 16, driving the pressing member 18 to move upward, thereby changing the inner rotating cylinder 7 to rotate counterclockwise to accelerate the slag discharge speed of the waste residue in the inner rotating cylinder 7.

[0043] The bidirectional driving structure includes a driving wheel 19 and a driving ring 20, and both the driving wheel 19 and the driving ring 20 are rotatably installed on the inner wall of the heat dissipation cylinder 6. The driving wheel 19 is directly driven by a heat dissipation motor 10, and an intermediate wheel 21 is meshed between the driving wheel 19 and the driving ring 20. The linkage structure includes a driven wheel 23 and a driven ring 24, and both the driven wheel 23 and the driven ring 24 are limited and movably installed on the outer wall of the inner rotating cylinder 7 through spring guide rods 26. Driven surface teeth 25 are arranged on the surfaces of the driven wheel 23 and the driven ring 24, and driving surface teeth 22 are arranged on the surfaces of the driving wheel 19 and the driving ring 20. The driven wheel 23 and the driven ring 24 are respectively connected with an inner inclined surface seat 27 and an outer inclined surface seat 28 through spring guide rods 26, and the inner inclined surface seat 27 and the outer inclined surface seat 28 are located inside the inner rotating cylinder 7. The pressing member 18 can push the inner inclined surface seat 27 or the outer inclined surface seat 28.

[0044] The heat dissipation motor 10 drives the inner drum 7 through a bidirectional drive structure. A linkage structure is provided on the inner drum 7, and the direction of the inner drum 7 can be selected according to the amount of waste residue in the inner drum 7. Under normal circumstances, the lifting rod 15 is in a low position, and the pressure piece 18 acts on the inner bevel seat 27. The inner bevel seat 27 pushes the driven wheel 23 outward through the spring guide rod 26, so that the driven wheel 23 is engaged with the driving wheel 19 through the engagement of the driven face teeth 25 and the driving face teeth 22, and the driving wheel 19 can drive the driven wheel 23 and the inner drum 7 to rotate clockwise. When the slag is discharged at a faster speed, the waste slag in the inner drum 7 can lift the lifting rod 15, and the pressing piece 18 is disengaged from the inner bevel seat 27, and acts on the outer bevel seat 28 instead. The driven wheel 23 is disengaged from the driving wheel 19, and the outer bevel seat 28 pushes the driven ring 24 outwards through the spring guide rod 26, so that the driven ring 24 is engaged with the driving ring 20 through the driven face teeth 25 and the driving face teeth 22, and the driving ring 20 can drive the driven ring 24 and the inner drum 7 to rotate counterclockwise, so as to quickly transport the waste slag.

[0045] At least one heat dissipation pipe 29 is arranged on the conveyor line 1, and the impact structure includes a support 30 installed in the middle of the heat dissipation pipe 29, and a rotating rod 31 is rotatably installed on the support 30, a force-bearing ball 32 is installed at the bottom end of the rotating rod 31, and the force-bearing ball 32 is in the inner cavity of the conveyor line 1, and an impact assembly 33 is installed at the top end of the rotating rod 31, and the impact assembly 33 is located below the filter 34.

[0046] A heat dissipation pipe 29 is also provided on the conveyor line 1 for auxiliary heat dissipation. Since the inner drum 7 adopts intermittent feeding, the waste residue will be squeezed to a certain extent on the outside of the inner drum 7. The heat dissipation pipe 29 mainly dissipates heat at this time. The filter 34 provided on the heat dissipation pipe 29 can prevent dust from escaping, and when the waste residue flows, the force-bearing ball 32 can be pushed irregularly, so that the rotating rod 31 rotates continuously, and then the impact component 33 thereon hits the inner wall of the heat dissipation pipe 29, so that the dust on the inner wall of the heat dissipation pipe 29 and the filter 34 falls off to avoid affecting the heat dissipation effect.

[0047] A method for recycling strontium salt in production, using a slag discharge system in strontium salt production, the method comprising the following steps:

[0048] S1, recovering the waste slag, connecting the slag discharge system with the strontium salt production device, recovering the waste slag, pushing the waste slag through the waste slag pushing structure, and quickly dissipating the heat in the process of flow, and then entering the waste slag separation equipment;

[0049] S2, waste residue separation, according to the composition and properties of the waste residue, it is divided into different types, including waste, inorganic salts, and metal impurities;

[0050] S3, physical and chemical pretreatment, crushing the waste residue that can be reused into smaller particles, then leaching the waste residue with a suitable solvent to extract inorganic salts and metal impurities, and then separating the corresponding components;

[0051] S4, solidification, recycling and reuse. For waste that cannot be extracted, a solidifying agent is used to treat it to reduce its permeability and solubility, and it is used in the production of building materials and ceramic products. For inorganic salts and metal salts, they are recycled and reused in the production of strontium salts or processed into products.

[0052] The slag discharge system of the present invention is used as follows: first, the slag discharge system adopts a semi-enclosed conveying structure, and only a recovery bucket 2, a slag discharge port 3, and a heat dissipation pipe 29 with a filter screen 34 are provided on the conveying line 1, which can effectively reduce dust emission and avoid environmental pollution. In order to ensure that the slag discharge system can effectively dissipate the heat of the waste slag, a heat dissipation cylinder 6 is provided in the middle of the conveying line 1, and an inner rotating cylinder 7 is provided in the heat dissipation cylinder 6. The openings 8 distributed on the inner rotating cylinder 7 are used for feeding. After the waste slag enters the conveying line 1, the waste slag is pushed by the spiral rod 4. During the rotation of the inner rotating cylinder 7, the waste slag can intermittently enter the inner rotating cylinder 7. In the semi-enclosed state, the flow speed of the waste slag is slowed down to a certain extent to complete the rapid heat dissipation work. In the semi-closed state, the waste slag is quickly cooled by the water cooling structure arranged in the inner drum 7. The waste slag entering the inner drum 7 can rotate accordingly, so as to contact with multiple heat absorption pipes 13. The water inlet pipe 11 transports cooling water to the water exchange seat 9. The cooling water flows in the heat absorption pipe 13, which can take away the heat of the waste slag and is recycled from the return water pipe 12, so that the waste slag can be quickly cooled and dispersedly enter the slag outlet 3 from the other side opening 8 of the inner drum 7 to complete the recycling work. The transportation speed of the waste slag is limited by the inner drum 7. Figure 2As shown, the inner drum 7 is usually set to rotate clockwise, and the waste slag entering the inner drum 7 is rotated upward, extending the heat dissipation time in the inner drum 7, and the amount of waste slag entering the conveying line 1 can be limited by the recovery bucket 2. However, in some production processes, the temperature of the waste slag is relatively low, and the slag discharge speed can be increased. At this time, the amount of waste slag entering the inner drum 7 is larger. When it exceeds half of the inner drum 7, the floating plate 17 will be pushed up, so that the lifting rod 15 overcomes the elastic force of the limit spring 16 and moves up in the limit seat 14, driving the pressing piece 18 to move up, thereby the inner drum 7 The inner drum 7 is changed to counterclockwise rotation to speed up the discharge of the waste slag in the inner drum 7. The heat dissipation motor 10 drives the inner drum 7 through a two-way drive structure. A linkage structure is provided on the inner drum 7, and the direction of the inner drum 7 can be selected according to the amount of waste slag in the inner drum 7. Under normal circumstances, the lifting rod 15 is in a low position, and the pressing piece 18 acts on the inner bevel seat 27. The inner bevel seat 27 pushes the driven wheel 23 outward through the spring guide rod 26, so that the driven wheel 23 is engaged with the driving wheel 19 through the engagement of the driven face teeth 25 and the driving face teeth 22, and the driving wheel 19 can drive the driven wheel 23 to engage with the driving wheel 19. The wheel 23 and the inner drum 7 rotate clockwise to slowly transport the waste slag. When the slag discharge speed is faster, the waste slag in the inner drum 7 can lift the lifting rod 15, and the pressing piece 18 is separated from the inner bevel seat 27 and acts on the outer bevel seat 28 instead. The driven wheel 23 is separated from the driving wheel 19, and the outer bevel seat 28 pushes the driven circle 24 outward through the spring guide rod 26, so that the driven circle 24 is engaged with the driving circle 20 through the driven face teeth 25 and the driving face teeth 22. The driving circle 20 can drive the driven circle 24 and the inner drum 7 to rotate counterclockwise to quickly discharge the waste slag. In order to convey the waste slag, a heat dissipation pipe 29 is also provided on the conveying line 1 for auxiliary heat dissipation. Since the inner drum 7 adopts intermittent feeding, the waste slag will be squeezed to a certain extent on the outside of the inner drum 7. The heat dissipation pipe 29 mainly dissipates heat at this time. The filter 34 provided on the heat dissipation pipe 29 can prevent dust from escaping, and when the waste slag flows, the force-bearing ball 32 can be pushed irregularly, so that the rotating rod 31 rotates continuously, and then the impact component 33 thereon hits the inner wall of the heat dissipation pipe 29, so that the dust on the inner wall of the heat dissipation pipe 29 and the filter 34 falls off, avoiding affecting the heat dissipation effect.

[0053] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A slag removal system for strontium salt production, comprising a conveying line (1) with a waste slag inlet and outlet, characterized in that: A waste residue pushing structure is arranged in the conveying line (1), and a heat dissipation cylinder (6) is arranged in the middle of the conveying line (1), the heat dissipation cylinder (6) is communicated with the inner cavity of the conveying line (1), and an inner rotating cylinder (7) with an opening (8) is rotatably installed in the heat dissipation cylinder (6), the inner rotating cylinder (7) is rotatably installed on the water exchange seat (9) through a bearing, and the inner rotating cylinder (7) is driven by a heat dissipation motor (10), the water exchange seat (9) is connected to a water cooling structure, and the water cooling structure is located in the inner rotating cylinder (7), a floating plate (17) capable of sensing the height of the waste residue in the inner rotating cylinder (7) is lifted and installed on the water exchange seat (9), and the floating plate (17) is located in the middle of the inner rotating cylinder (7), and a pressing piece (18) is connected to the floating plate (17); The heat dissipation cylinder (6) is provided with a bidirectional driving structure, and the inner rotating cylinder (7) is provided with a selective linkage structure. When the floating plate (17) is raised or lowered, the state of the linkage structure can be adjusted by a pressing piece (18), so that the inner rotating cylinder (7) can adjust the rotation direction according to the height of the internal waste residue. A heat dissipation pipe (29) is vertically installed on the conveying line (1), and a filter screen (34) is provided on the top of the heat dissipation pipe (29). An impact structure driven by the movement of the waste residue is provided in the heat dissipation pipe (29).

2. The slag discharge system in strontium salt production according to claim 1, characterized in that: The conveyor line (1) is a closed tubular structure, and a recovery bucket (2) and a slag outlet (3) are respectively provided at both ends of the conveyor line (1). A screw rod (4) is rotatably installed in the conveyor line (1), and the screw rod (4) is driven by a conveying motor (5). The heat dissipation cylinder (6) is located at the feeding end of the screw rod (4), and channels are provided on both sides of the heat dissipation cylinder (6).

3. The slag discharge system in strontium salt production according to claim 1, characterized in that: The inner rotating cylinder (7) is arranged to fit the inner wall of the heat dissipation cylinder (6), and the opening (8) is arranged in an annular shape on the inner rotating cylinder (7). The water changing seat (9) is arranged to penetrate the side wall of the heat dissipation cylinder (6), and the water changing seat (9) is connected to the center of the inner rotating cylinder (7).

4. The slag discharge system in strontium salt production according to claim 1, characterized in that: The water exchange seat (9) is divided into a water inlet seat and a water outlet seat, and the water inlet seat and the water outlet seat are respectively connected to a water inlet pipe (11) and a water outlet pipe, and a heat absorption pipe (13) is connected between the water inlet pipe (11) and the water outlet pipe.

5. The slag discharge system in strontium salt production according to claim 1, characterized in that: A limit seat (14) is fixedly mounted on the water exchange seat (9), and a lifting rod (15) is slidably mounted in the limit seat (14), a limit spring (16) is fixedly connected to the lifting rod (15), and a floating plate (17) is horizontally arranged on the lifting rod (15), and the pressing piece (18) is connected to the floating plate (17) via the lifting rod (15).

6. The slag discharge system in strontium salt production according to claim 1, characterized in that: The bidirectional driving structure comprises a driving wheel (19) and a driving ring (20), and the driving wheel (19) and the driving ring (20) are both rotatably mounted on the inner wall of the heat dissipation cylinder (6), the driving wheel (19) is directly driven by the heat dissipation motor (10), and a rotating wheel (21) is meshed between the driving wheel (19) and the driving ring (20).

7. A slag discharge system in strontium salt production according to claim 6, characterized in that: The linkage structure comprises a driven wheel (23) and a driven ring (24), and the driven wheel (23) and the driven ring (24) are both mounted on the outer wall of the inner drum (7) in a limited manner through a spring guide rod (26), and the surfaces of the driven wheel (23) and the driven ring (24) are provided with driven face teeth (25), and the surfaces of the driving wheel (19) and the driving ring (20) are provided with driving face teeth (22).

8. A slag discharge system in strontium salt production according to claim 7, characterized in that: The driven wheel (23) and the driven ring (24) are respectively connected to an inner bevel seat (27) and an outer bevel seat (28) via a spring guide rod (26), and the inner bevel seat (27) and the outer bevel seat (28) are located inside the inner rotating cylinder (7), and the pressing piece (18) can push the inner bevel seat (27) or the outer bevel seat (28).

9. The slag discharge system in strontium salt production according to claim 1, characterized in that: At least one heat dissipation pipe (29) is arranged on the conveyor line (1), and the impact structure comprises a support (30) installed in the middle of the heat dissipation pipe (29), and a rotating rod (31) is rotatably installed on the support (30), a force-bearing ball (32) is installed at the bottom end of the rotating rod (31), and the force-bearing ball (32) is located in the inner cavity of the conveyor line (1), and an impact assembly (33) is installed at the top end of the rotating rod (31), and the impact assembly (33) is located below the filter (34).

10. A method for recycling strontium salt production, using the slag discharge system in strontium salt production as claimed in claim 1, characterized in that: The method comprises the following steps: S1, recovering the waste slag, connecting the slag discharge system with the strontium salt production device, recovering the waste slag, pushing the waste slag through the waste slag pushing structure, and quickly dissipating the heat in the process of flow, and then entering the waste slag separation equipment; S2, waste residue separation, according to the composition and properties of the waste residue, it is divided into different types, including waste, inorganic salts, and metal impurities; S3, physical and chemical pretreatment, crushing the waste residue that can be reused into smaller particles, then leaching the waste residue with a suitable solvent to extract inorganic salts and metal impurities, and then separating the corresponding components; S4, solidification, recycling and reuse. For waste that cannot be extracted, a solidifying agent is used to treat it to reduce its permeability and solubility, and it is used in the production of building materials and ceramic products. For inorganic salts and metal salts, they are recycled and reused in the production of strontium salts or processed into products.

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