High pressure cold pressing ball device for dust removal dry ash of converter

Abstract

The application provides a high-pressure cold-pressing ball device for converter dust dry ash, and relates to the technical field of high-pressure cold-pressing, which comprises a machine body, a cold-pressing bin fixedly arranged on the machine body, a rolling mechanism, a conveyor, a roller, a conveyor belt, a screening net and a return conveying mechanism. The rolling mechanism is used for rolling and mixing the dust dry ash and additives. The roller is rotatably arranged in the cold-pressing bin. The conveyor belt is arranged below the outlet of the cold-pressing bin and is used for receiving and conveying the cold-pressed balls. The screening net is arranged at the outlet of the conveyor belt and is used for screening the cold-pressed balls and scraps. A scrap box for receiving the scraps is arranged below the screening net. The return conveying mechanism is used for conveying the scraps in the scrap box to the inside of the rolling mechanism for continuous mixing and cold-pressing. The high-pressure cold-pressing ball device for converter dust dry ash provided by the application utilizes the rolling mechanism, realizes dry cold-pressing, omits the steps of water addition, digestion and drying, and improves the production efficiency.

Description

Technical Field

[0001] This invention belongs to the field of high-pressure cold pressing technology, specifically, it relates to a high-pressure cold pressing ball device for drying dust in a converter. Background Technology

[0002] In the steelmaking process of steel enterprises, the dust from the primary converter is usually treated in a long process, that is, it enters the sintering and blast furnace system. This process will cause harmful elements such as alkali metals to gradually accumulate in the sintering and blast furnace, leading to problems such as decreased sintering permeability, increased grate bar burn-off, and unfavorable blast furnace conditions, which in turn will increase production costs and increase the accident rate.

[0003] Currently, the industry mostly uses wet briquetting technology to treat dust collector ash. This involves adding water to the dust collector ash to digest it, then pressing it into shape, and finally drying it for use as cold material. However, the wet process has the following problems: adding water to digest it will destroy the active components such as CaO in the dry ash, affecting the quality of the briquettes. In addition, the wet briquetting process requires a large amount of water, and the drying process consumes a large amount of gas, resulting in high energy consumption, safety hazards, and waste gas pollution. Wet briquettes have low strength and require long-term sun drying or sun exposure after briquetting, resulting in low production efficiency. Summary of the Invention

[0004] The purpose of this invention is to provide a high-pressure cold briquetting device for drying dust in converters, which solves the technical problems of high energy consumption and long time in the wet briquetting process of related technologies, which requires a large amount of water and subsequent drying also requires a large amount of gas.

[0005] At least one embodiment of the present invention provides a high-pressure cold briquetting device for drying ash from a converter, comprising a body and a cold briquetting chamber fixedly disposed on the body, and further comprising: A compaction mechanism, used for compacting and mixing dust collector ash and additives, the compaction mechanism comprising: Compaction chamber; A compaction wheel, which is rotatably disposed inside the compaction chamber; A conveyor for transporting the material crushed by the crushing mechanism into the interior of the cold pressing chamber; The rollers are provided in two, and are rotatably disposed inside the cold pressing chamber. Each roller has a ball-shaped cup for forming, and the two rollers rotate relative to each other. A conveyor belt, located below the outlet of the cold pressing chamber, is used to receive and transport cold-pressed balls; A screening screen is installed at the exit position of the conveyor belt for screening cold-pressed balls and debris. A debris box is installed below the screening screen for receiving the debris. A return material conveying mechanism is used to convey the debris in the debris bin to the interior of the crushing mechanism for further mixing and cold pressing. The return material conveying mechanism includes: The conveying cylinder has an inlet connected to the debris box, a slope is fixedly provided at the bottom of the debris box, a discharge port is provided on the debris box, the discharge port is located at the bottom end of the slope, and the outlet of the conveying cylinder is connected to the inlet of the compaction chamber. A conveying auger is rotatably disposed inside the conveying cylinder.

[0006] To reduce the moisture content of the raw materials, an auxiliary drying mechanism is also included. This auxiliary drying mechanism is located inside the crushing chamber and is used to pneumatically agitate and dry the raw materials within the crushing chamber. The auxiliary drying mechanism includes: The air inlet seat has a main shaft rotatably mounted inside the compaction chamber. The compaction wheel is rotatably mounted on the main shaft. The main shaft has a hollow structure. The air inlet seat and the main shaft are rotatably connected. The air inlet seat is also connected to an external air supply device. A purge shaft is fixedly connected to the main shaft. Multiple purge rods are fixedly connected to the bottom of the purge shaft, and multiple air outlets are provided on the purge rods.

[0007] To reduce the adhesion of raw materials to the rolls, a cleaning assembly is also included. This cleaning assembly is disposed inside the cold pressing chamber and is used to clean the surface of the rolls. The cleaning assembly includes: A cleaning roller is rotatably disposed inside the cold pressing chamber, and a cleaning brush is fixedly connected to the outside of the cleaning roller, the cleaning brush being in contact with the roller.

[0008] To ensure the smooth descent of the cold-pressed balls, two baffles are fixedly connected to the inner bottom wall of the cold-pressing chamber. The baffles correspond one-to-one with the rollers, and the baffles are located below the rollers to block the formed cold-pressed balls inside the ball bowl.

[0009] To collect and recycle the debris swept off the rollers, two debris sliding plates are fixedly connected inside the cold pressing chamber. Each debris sliding plate corresponds to a cleaning roller and is located below the cleaning roller. The debris sliding plates are inclined inside the cold pressing chamber, with the lower side of the debris sliding plate contacting the top of the baffle. The debris can slide down along the top of the debris sliding plate and the baffle to the outlet of the cold pressing chamber.

[0010] To ensure the uniformity of the briquetting, a reciprocating actuating plate is installed inside the cold pressing chamber. A actuating rod for actuating and spreading the raw material is fixedly installed on the actuating plate. The actuating rod is located above the forming gap between the two rollers.

[0011] 1. Compared with the prior art, the high-pressure cold-pressing briquetting device for converter dust removal dry ash provided in this embodiment of the invention adds dust removal dry ash, a small amount of iron oxide scale and a quantitative binder into the inside of the rolling chamber. The added raw materials are rolled and mixed by the rolling roller. The high-intensity mechanical rolling forcefully breaks up the agglomerated particles, so that the material particles produce a fresh and activated surface. This allows the binder and raw materials such as dust removal dry ash and iron oxide scale to achieve an extremely uniform mixture at the microscopic level. The water addition and digestion step in the prior art is eliminated, and the subsequent drying step is also omitted, reducing the use of water and gas resources. At the same time, the digestion time is greatly reduced, and the efficiency of cold-pressing briquetting is improved.

[0012] 2. Compared with the prior art, the high-pressure cold-pressing ball device for converter dust removal and dry ash provided in this embodiment of the invention uses a cleaning roller to drive a cleaning brush to sweep the debris off the surface of the roller. The debris falls onto the conveyor belt through a debris slide plate and a baffle and is transported together with the cold-pressing balls. The cold-pressing balls and debris are screened by a screening screen. The debris falls into the interior of the debris box and is sent back to the rolling chamber through a return material conveying mechanism for further rolling and mixing and use in subsequent cold pressing. This reduces the accumulation and residue of debris, allows the debris to be recycled in a timely manner, and reduces subsequent cleaning work. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a first-view structural schematic diagram of a high-pressure cold briquetting device for converter dust removal and drying provided in an embodiment of the present invention. Figure 2 This is a second-view structural schematic diagram of the entire embodiment of the present invention; Figure 3 This is an embodiment of the present invention. Figure 1 Schematic diagram of the intercooling chamber, motor, rolling mechanism and auxiliary drying mechanism; Figure 4 This is an embodiment of the present invention. Figure 1 Schematic diagram of the intermediate compaction mechanism and auxiliary drying mechanism; Figure 5 This is an embodiment of the present invention. Figure 1 A schematic diagram of the structure of the intercooling chamber, rolls, motor, and cleaning components; Figure 6 This is an embodiment of the present invention. Figure 1 A schematic diagram of the structure of the intermediate roll, motor, reducer, and cleaning assembly; Figure 7 This is an embodiment of the present invention. Figure 1 Schematic diagram of the medium-sized debris box and the return material conveying mechanism; Figure 8 This is an embodiment of the present invention. Figure 3 A magnified schematic diagram of the structure at point A in the middle.

[0015] In the picture: 1. Machine body; 2. Cold pressing chamber; 3. Rolls; 4. Motor; 5. Reducer; 6. Transmission gear; 7. Baffle; 13. Actuating plate; 14. Actuating rod; 15. Conveyor belt; 16. Screening screen; 17. Debris box; 18. Conveyor; 101. Compactor bin; 102. Compactor wheel; 103. Main shaft; 104. Opening and closing plate; 201. Conveyor cylinder; 202. Conveyor auger; 203. Landslide; 301. Intake seat; 302. Blow shaft; 303. Blow bar; 401. Sweeping roller; 402. Driven gear; 403. Cleaning brush; 404. Debris slide plate. Detailed Implementation The specific embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit this disclosure. For ease of understanding, the English abbreviations and related technical terms involved in the embodiments of this disclosure will be explained and described below.

[0016] It should be understood that the described embodiments are merely some, not all, of the embodiments disclosed herein. All other embodiments obtained by those skilled in the art based on the embodiments of this disclosure without inventive effort are within the scope of protection of this disclosure.

[0017] The terminology used in the embodiments of this disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of this disclosure. The singular forms “a,” “the,” and “the” as used in the embodiments of this disclosure and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise.

[0018] It should be understood that the term "and / or" used in this article is merely a way of describing the logical relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0019] Depending on the context, the word "if" as used here can be interpreted as "when" or "when" or "in response to determination" or "in response to detection." Similarly, depending on the context, the phrase "if determination" or "if detection (of the stated condition or event)" can be interpreted as "when determination" or "in response to determination" or "when detection (of the stated condition or event)" or "in response to detection (of the stated condition or event)."

[0020] It should be understood that the terms "first," "second," etc., used in this disclosure are for distinguishing purposes only and should not be construed as indicating or implying relative importance or order.

[0021] In the description of this disclosure, the terms “center,” “upper,” “lower,” “front,” “back,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this disclosure and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and should not be construed as a limitation of this disclosure.

[0022] In the description of this disclosure, it should be noted that, unless otherwise expressly specified and limited, the terms "installation", "connection" and "joining" should be interpreted broadly, for example, they can be fixed connections, detachable connections, mating connections or integral connections; those skilled in the art can understand the specific meaning of the above terms in this disclosure according to the specific circumstances.

[0023] like Figures 1 to 8 As shown, it illustrates a high-pressure cold-pressing ball device for converter dust removal and dry ash in one embodiment of the present invention, including a body 1 and a cold-pressing chamber 2 fixedly installed on the body 1, and also including a rolling mechanism, a conveyor 18, a roller 3, a conveyor belt 15, a screening screen 16 and a return material conveying mechanism.

[0024] like Figures 1 to 4As shown, the compaction mechanism is used to compact and mix dust collector ash and additives. The compaction mechanism includes a compaction chamber 101 and a compaction wheel 102. The top of the compaction chamber 101 is connected to an inlet. The compaction wheel 102 is rotatably mounted inside the compaction chamber 101. A main shaft 103 is rotatably mounted inside the compaction chamber 101. A drive motor and a reducer for driving the main shaft 103 are installed on the compaction chamber 101. The compaction wheel 102 is rotatably mounted on the main shaft 103. An outlet is opened at the bottom of the compaction chamber 101. A feed hopper is set at the top of the cold pressing chamber 2. The outlet is located inside the feed hopper. An opening and closing plate 104 is rotatably mounted on the outlet. A sieve plate is installed at the outlet. Two scrapers of different lengths are installed on the main shaft 103. Dust collector ash, a small amount of iron oxide scale, and a quantitative binder are added into the interior of the compaction chamber 101 through the inlet. The material entering the compaction chamber 101 is sent to the underside of the compaction wheel by the short scraper. The material is repeatedly crushed. Due to centrifugal force and crushing action, the crushed material is thrown onto the outer screen plate. The opening and closing plate 104 is opened, and qualified material can fall through the screen plate. Unqualified material is sent to the grinding wheel by a long scraper on the screen surface for further crushing. This achieves crushing and mixing of raw materials. Through high-intensity mechanical crushing, agglomerated particles are strongly broken, and the material particles have a fresh and activated surface. This allows the binder and raw materials such as dust collector ash and oxide scale to achieve an extremely uniform mixture at the microscopic level. The crushing method replaces the existing twin-shaft mixer. Through mechanical force, the binder uniformly coats and activates each dry ash particle to form a cohesive mixture. This process replaces the steps of "adding water - chemical reaction - forming viscosity" to achieve the dissolution of dust collector ash. The dissolution time is shortened from 12 hours with water to half an hour, which greatly improves the cold pressing efficiency of cold-pressed balls.

[0025] The conveyor 18 is used to transport the material crushed by the crushing mechanism to the interior of the cold pressing chamber. The conveyor 18 includes a box body and a conveyor belt disposed inside the box body. The bottom outlet of the crushing chamber 101 is connected to a hopper. The inlet of the box body is connected to the hopper. The outlet of the box body is connected to the top of the cold pressing chamber 2. An anti-fall plate is provided at the inlet of the box body. The anti-fall plate is in contact with the surface of the conveyor belt to block the material that slides from the hopper into the box body and prevents the material from falling. The crushed material is transported to the outlet of the box body by the conveyor belt and falls into the interior of the cold pressing chamber 2, realizing the transfer of material between the crushing and forming processes.

[0026] like Figures 5 to 6As shown, two rollers 3 are provided, rotatably mounted inside the cold pressing chamber 2. Each roller 3 has a ball-shaped cup for forming. The two rollers 3 rotate relative to each other. A motor 4 and a reducer 5 are mounted on the machine body 1. The output end of the motor 4 is connected to the input end of the reducer 5. One of the rollers 3 is fixedly connected to the output end of the reducer 5. A transmission gear 6 is fixedly connected to the end of each roller 3. The two transmission gears 6 mesh to cause the two rollers 3 to rotate relative to each other. The motor 4 drives the roller 3 to rotate, and the material falls onto the two rollers 3. In the forming area between the two rollers 3, as they rotate and press against each other, cold-pressed balls are formed through the ball bowl. To ensure the smooth fall of the cold-pressed balls, two baffles 7 are fixedly connected to the inner bottom wall of the cold pressing chamber 2. The baffles 7 correspond one-to-one with the rollers 3. The baffles 7 are located below the rollers 3 to block the cold-pressed balls formed in the ball bowl. After the rollers 3 cold-press the raw material, as the rollers 3 rotate, the baffles 7 block the cold-pressed balls and push them out of the ball bowl. The cold-pressed balls fall through the outlet at the bottom of the cold pressing chamber 2.

[0027] To ensure the uniformity of the compressed balls, a reciprocating moving plate 13 is installed inside the cold pressing chamber 2. A moving rod 14 for moving and spreading the raw material is fixedly installed on the moving plate 13. The moving rod 14 is located above the forming gap between the two rollers 3. Preferably, an electric cylinder or a reciprocating screw is installed on the cold pressing chamber 2. A nut seat matching the reciprocating screw is provided on the moving plate 13. The moving plate 13 is driven to move back and forth by the electric cylinder or the reciprocating screw, which drives the moving rod 14 to spread the raw material between the two rollers 3 evenly between the forming gap, ensuring the uniformity of the cold-pressed balls and avoiding material accumulation in the middle of the rollers 3, which would cause material blockage, or insufficient material on both sides of the rollers 3, which would result in insufficient pressing force and forming defects.

[0028] Conveyor belt 15 is positioned below the outlet of cold pressing chamber 2 to receive and transport cold-pressed balls. Screening mesh 16 is positioned at the outlet of conveyor belt 15 to screen the cold-pressed balls and debris. Below screening mesh 16 is a debris box 17 for receiving debris. The cold-pressed balls fall onto the conveyor belt 15 below. The conveyor belt 15 is inclined upwards. A baffle 7 is fixedly connected below the outlet of cold pressing chamber 2. The bottom end of baffle 7 is connected to conveyor belt 15. 5. Contact is used to block falling cold-pressed balls and debris. The conveyor belt 15 transports the cold-pressed balls and debris to the screening screen 16. The gap of the screening screen 16 is smaller than that of the cold-pressed balls. When the cold-pressed balls and debris fall from the conveyor belt 15 onto the screening screen 16, they are screened by the screening screen 16. The debris falls into the inside of the debris box 17, and the cold-pressed balls roll down along the screening screen 16. A conveying system is set below the screening screen 16 to transport the cold-pressed balls for subsequent processing.

[0029] like Figures 1 to 7As shown, the return material conveying mechanism is used to convey the debris in the debris box 17 to the interior of the compaction chamber 101 for further mixing and cold pressing. The return material conveying mechanism includes a conveying cylinder 201 and a conveying auger 202. The inlet of the conveying cylinder 201 is connected to the debris box 17. A ramp 203 is fixedly installed at the bottom of the debris box 17. A discharge port is opened on the debris box 17, and the discharge port corresponds to the bottom end of the ramp 203. The outlet of the conveying cylinder 201 is connected to the inlet of the compaction chamber 101. The conveying auger 202 is rotatably installed inside the conveying cylinder 201. The conveying cylinder 201 is equipped with a motor and a reducer for driving the conveying auger 202 to rotate. The debris falling into the debris box 17 slides down the slide 203 through the discharge port into the conveying cylinder 201. The motor drives the conveying auger 202 to rotate, lifting the debris to the inlet of the compaction chamber 101 and sending it into the interior of the compaction chamber 101 for recycling, reducing the residue of debris inside the equipment.

[0030] To reduce the moisture content of the raw materials, an auxiliary drying mechanism is also included. This auxiliary drying mechanism is located inside the compaction chamber 101 and is used for pneumatically agitating and drying the raw materials within the chamber. The auxiliary drying mechanism includes an air inlet seat 301 and a purge shaft 302. A main shaft 103 is rotatably mounted inside the compaction chamber 101, and the compaction wheel 102 is rotatably mounted on the main shaft 103. The main shaft 103 has a hollow structure. The air inlet seat 301 and the main shaft 103 are rotatably connected, and the air inlet seat 301 is connected to an external air supply device. The purge shaft 302 is fixedly connected to the main shaft 103, and multiple purge rods 303 are fixedly connected to the bottom of the purge shaft 302. The purge rods 303 have openings on their top surfaces. Multiple air outlets are provided, each equipped with a one-way valve. Air is blown outward from the air outlets to prevent debris from entering the interior of the blower bar 303. The blower shaft 302 rotates with the main shaft 103, driving the blower bar 303 to scrape the raw material. At the same time, an external air supply device supplies air into the air supply seat. The gas flows into the blower shaft 302 through the hollow main shaft 103 and is sprayed out through the air outlets into the interior of the raw material, providing auxiliary pneumatic stirring and removing moisture from the raw material. A heater can be installed inside the air supply seat to enhance the drying effect. A cover plate is provided at the inlet of the compaction chamber 101. During the compaction process, the cover plate seals the inlet to prevent dust from escaping.

[0031] like Figures 5 to 6As shown, to reduce the adhesion of raw materials to the roll 3, a cleaning assembly is also included. The cleaning assembly is located inside the cold pressing chamber 2 and is used to clean the surface of the roll 3. The cleaning assembly includes a cleaning roller 401, which is rotatably mounted inside the cold pressing chamber 2. A driven gear 402 is coaxially fixedly connected to the cleaning roller 401, and the driven gear 402 meshes with the transmission gear 6. A cleaning brush 403 is fixedly connected to the outside of the cleaning roller 401, and the cleaning brush 403 contacts the roll 3. To collect and recover the debris swept off the roll 3, two debris slide plates 404 are fixedly connected inside the cold pressing chamber 2. The debris slide plates 404 correspond one-to-one with the cleaning rollers 401, and are located below the cleaning rollers 401. The debris slide plates 404 are inclined and mounted on the cold pressing chamber. Inside chamber 2, the lower side of the debris slide plate 404 contacts the top of the baffle 7. The debris can slide down the top of the debris slide plate 404 and the baffle 7 to the outlet of the cold pressing chamber 2. During the rotation of the roller 3, the transmission gear 6 drives the driven gear 402 to make the cleaning roller 401 rotate synchronously. The cleaning roller 401 and the roller 3 rotate in opposite directions, so that the cleaning brush 403 scrapes off the debris residue on the surface of the roller 3, especially in the ball sticking bowl. The debris is collected into the cold pressing ball through the debris slide plate 404 and the baffle 7 and output together. Then, the cold pressing ball and debris are transported by the conveyor belt 15. The debris is separated and recycled by the screening screen 16. There is a certain gap between the baffle 7 and the roller 3. The gap is smaller than the radius of the cold pressing ball, which can block the cold pressing ball and allow the debris to pass through.

[0032] The working principle or usage process of the high-pressure cold-pressing briquetting device for converter dust removal and dry ash removal is as follows: Raw materials are fed into the compaction chamber 101 through the inlet. The drive motor drives the main shaft 103 to rotate, thereby driving the compaction rollers 102 to premix and initially compact the raw materials. The opening and closing plate 104 opens, allowing the qualified material after compaction to fall through the screen plate into the interior of the conveyor 18. The conveyor 18 transports the material to the interior of the cold pressing chamber 2. The actuating plate 13 drives the actuating rod 14 to evenly spread the raw materials above the forming gap between the two rollers 3. The motor 4 drives the two rollers 3 to rotate relative to each other. After the material is squeezed into balls in the forming area, it is pushed out by the baffle 7 and falls onto the conveyor belt 15. At the same time, the transmission gear 6 drives the cleaning roller 401 to rotate in the opposite direction, and the cleaning brush 403 scrapes away the material. The residue and debris on the surface of the roller 3 slide down the debris slide plate 404 and the baffle 7 and are discharged into the cold-pressed balls. The conveyor belt 15 transports them to the screening screen 16, where the debris and finished product are separated. The finished product slides down the screening screen 16 to the conveying system for further processing. The debris falls into the debris box 17 and is returned to the crushing chamber 101 for reuse through the return material conveying mechanism. During the crushing and mixing process, air is supplied to the air inlet seat 301 through the external air supply equipment, enters the blowing shaft 302 through the main shaft 103, and is sprayed into the raw material through the air outlet to pneumatically stir and assist in drying the material, reduce the moisture content, and improve the strength and quality of the cold-pressed balls.

[0033] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A high-pressure cold-pressing briquetting device for drying dust in a converter, comprising a body (1) and a cold-pressing chamber (2) fixedly disposed on the body (1), characterized in that, Also includes: A compaction mechanism for compacting and mixing dust collector ash and additives; Conveyor (18), the conveyor (18) is used to transport the material crushed by the crushing mechanism to the interior of the cold pressing chamber (2); Roller (3), two rollers (3) are provided, the rollers (3) are rotatably disposed inside the cold pressing chamber (2), the rollers (3) are provided with ball cups for forming, and the two rollers (3) rotate relative to each other; A conveyor belt (15) is disposed below the outlet of the cold press chamber (2) for receiving and conveying cold press balls; Screening mesh (16) is set at the outlet of the conveyor belt (15) for screening cold-pressed balls and debris. A debris box (17) is set below the screening mesh (16) for receiving the debris. The return material conveying mechanism is used to convey the debris in the debris box (17) to the interior of the crushing mechanism for further mixing and cold pressing.

2. The high-pressure cold-pressing briquetting device for converter dust removal and dry ash as described in claim 1, characterized in that, The compaction mechanism includes: Compaction chamber (101); A rolling mill (102) is rotatably disposed inside the rolling mill chamber (101).

3. The high-pressure cold-pressing briquetting device for converter dust removal and drying ash according to claim 2, characterized in that, The return material conveying mechanism includes: The conveying cylinder (201) has its inlet connected to the debris box (17). A slope (203) is fixedly provided at the bottom of the debris box (17). A discharge port is provided on the debris box (17). The discharge port and the bottom end of the slope (203) are corresponding. The outlet of the conveying cylinder (201) is connected to the inlet of the compaction chamber (101). A conveying auger (202) is rotatably disposed inside the conveying cylinder (201).

4. The high-pressure cold-pressing briquetting device for converter dust removal and drying ash according to claim 2, characterized in that, It also includes an auxiliary drying mechanism, which is located inside the crushing chamber (101) and is used to pneumatically stir and dry the raw materials in the crushing chamber (101).

5. The high-pressure cold-pressing briquetting device for converter dust removal and drying ash according to claim 4, characterized in that, The auxiliary drying mechanism includes: An air inlet seat (301) is provided inside the compaction chamber (101), on which a main shaft (103) is rotatably mounted. The compaction wheel (102) is rotatably mounted on the main shaft (103). The main shaft (103) has a hollow structure. The air inlet seat (301) and the main shaft (103) are rotatably connected. The air inlet seat (301) is connected to an external air supply device. A purge shaft (302) is fixedly connected to the main shaft (103). Multiple purge rods (303) are fixedly connected to the bottom of the purge shaft (302), and multiple air outlets are provided on the purge rods (303).

6. The high-pressure cold-pressing briquetting device for drying ash from a converter as described in claim 1, characterized in that, It also includes a cleaning assembly disposed inside the cold pressing chamber (2) for cleaning the surface of the roll (3).

7. The high-pressure cold-pressing briquetting device for converter dust removal and dry ash as described in claim 6, characterized in that, The cleaning component includes: A cleaning roller (401) is rotatably disposed inside the cold pressing chamber (2). A cleaning brush (403) is fixedly connected to the outside of the cleaning roller (401), and the cleaning brush (403) is in contact with the roller (3).

8. The high-pressure cold-pressing briquetting device for converter dust removal and dry ash as described in claim 7, characterized in that, Two baffles (7) are fixedly connected to the inner bottom wall of the cold pressing chamber (2). The baffles (7) correspond one-to-one with the rollers (3). The baffles (7) are located below the rollers (3) to block the formed cold-pressed balls in the ball bowl.

9. The high-pressure cold-pressing briquetting device for converter dust removal and drying ash according to claim 8, characterized in that, Two debris slide plates (404) are fixedly connected inside the cold pressing chamber (2). The debris slide plates (404) correspond one-to-one with the cleaning roller (401). The debris slide plates (404) are located below the cleaning roller (401). The debris slide plates (404) are inclined inside the cold pressing chamber (2). The side of the debris slide plate (404) with the lower height contacts the top of the baffle (7). The debris can slide down along the top of the debris slide plates (404) and the baffle (7) to the outlet of the cold pressing chamber (2).

10. The high-pressure cold-pressing briquetting device for converter dust removal and dry ash as described in claim 1, characterized in that, The cold pressing chamber (2) is equipped with a reciprocating moving plate (13), and a moving rod (14) for moving and spreading the raw material is fixedly installed on the moving plate (13). The moving rod (14) is located above the forming gap between the two rollers (3).

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