Drying device for iron slag powder processing

Abstract

The invention relates to the technical field of iron slag powder processing, in particular to a drying device for iron slag powder processing, which comprises a drying machine, the drying machine comprises a continuously rotating drying roller, and a crushing unit, a material homogenizing unit and a high polishing unit are sequentially mounted in the drying roller from right to left; the drying roller is sequentially divided into a pretreatment area, a main drying area and a final drying area from right to left. The mode that the interior of the drying roller is divided into the pretreatment area, the main drying area and the final drying area is adopted, different treatments are conducted according to different stages of the water content of the iron slag powder, the crushing unit is arranged in the pretreatment area to conduct extrusion crushing treatment on the iron slag powder with the high water content, and the iron slag powder with the high water content is prevented from caking; a material uniformizing unit is arranged in the main drying area to prevent iron slag powder from being accumulated, and it is ensured that the raised iron slag powder can make full contact with hot air; a high-throwing unit is arranged in the final drying area, so that the lifting height of the iron slag powder is increased, and the contact time of the iron slag powder and hot air is prolonged.

Description

Technical Field

[0001] The present invention relates to the technical field of iron slag powder processing, and specifically to a drying device for iron slag powder processing. Background Art

[0002] Iron slag powder is a powdery substance formed by crushing and grinding solid waste generated in the metallurgical industry. Its main components are iron oxide, silicate, calcium oxide and a small amount of metal oxides. After being recycled, iron slag powder can be used as building material raw materials, soil conditioners or metallurgical raw materials, etc. However, since iron slag powder contains moisture, it is necessary to dry the iron slag powder.

[0003] Currently, a rotary dryer is often used to dry iron slag powder. The rotary dryer drives the lifting plates inside through a continuously rotating rotary cylinder, so that the lifting plates drive the iron slag powder to move and lift the iron slag powder. At the same time, the air inside the rotary cylinder is heated through a heating chamber, so that the lifted iron slag powder contacts with the hot air to achieve the drying of the iron slag powder.

[0004] However, the above drying process has the following problems: 1. Iron slag powder caking: In the initial stage of iron slag powder drying, due to the relatively high water content inside the iron slag powder, there is an easy problem of iron slag powder caking, and the moisture inside the caked iron slag powder is difficult to be completely dried, thus affecting the quality of the final product.

[0005] 2. Incomplete drying: The lifting height of the existing lifting plates for iron slag powder is usually a fixed height. At the same time, since iron slag powder is likely to accumulate in large quantities, when the lifting plates lift the iron slag powder, a large amount of lifted iron slag powder may not be able to fully contact with the hot air, and thus it is easy to cause some iron slag powder to not be completely dried. Summary of the Invention

[0006] To solve the above technical problems, the present invention adopts the following technical solutions. A drying device for processing iron slag powder includes a dryer, which includes a continuously rotating drying drum. A plurality of lifting plates are fixedly installed in the drying drum. A crushing unit, a material leveling unit, and a high-throwing unit are sequentially installed in the drying drum from right to left, so that the drying drum is divided into a pretreatment area, a main drying area, and a final drying area from right to left; the crushing unit includes a plurality of feeding plates fixedly installed in the drying drum. A plurality of uniformly arranged and flared aggregate grooves are formed on the side of the feeding plate where the rotation direction is the same as that of the drying drum. An extrusion member for extruding iron slag is installed on the feeding plate; the material leveling unit includes a plurality of slow-down plates fixedly installed in the drying drum. The side of the slow-down plate where the rotation direction is the same as that of the drying drum is arranged in a wavy structure; the high-throwing unit includes a plurality of high-throwing plates fixedly installed in the drying drum. A plurality of square holes are uniformly arranged left and right on the high-throwing plate. A material blocking member is installed on the high-throwing plate, and the material blocking member is used to block the square holes and increase the lifting height of the iron slag; the lifting plates, high-throwing plates, and slow-down plates are all arranged in an inclined structure for driving the iron slag powder to move to the left. The high-throwing plates, slow-down plates, and feeding plates are all circumferentially staggered with their corresponding lifting plates.

[0007] Preferably, the continuous rotation of the drying drum is realized by a driving member installed on its right side. An inlet member is installed on the right side of the drying drum. The inlet member includes a fixing plate rotatably installed at the right end inside the drying drum. A feeding port is formed in the middle of the fixing plate. The right end of the fixing plate is fixedly connected to the frame of the dryer through two U-shaped connecting rods arranged symmetrically front and back.

[0008] Preferably, the extrusion member includes extrusion plates distributed on the side of the feeding plate where the rotation direction is the same as that of the drying drum. Grid holes staggered with the aggregate grooves are formed on the extrusion plates. L-shaped connecting rods are fixedly installed at the four corners on the side of the extrusion plate close to the feeding plate. The transverse sections of the connecting rods are located on the side where the rotation direction is opposite to that of the drying drum and the feeding plate, and the transverse sections of the connecting rods are fixedly connected to the elastic reset rods fixedly installed on the feeding plate.

[0009] Preferably, a crushing block corresponding to the aggregate groove is fixedly installed on the side of the extrusion plate close to the corresponding feeding plate, and the crushing block is arranged in a triangular structure.

[0010] Preferably, a plurality of transmission rods are fixedly installed together on the opposite sides of two adjacent extrusion plates on the left and right. A matching rod is fixedly installed in the middle of the right end of the extrusion plate located on the rightmost side.

[0011] Preferably, a plurality of circumferentially uniformly arranged elastic pressing rods are distributed at the rear part on the left side of the fixing plate, and the right sides of the elastic pressing rods are fixedly connected to the fixing plate through fixing blocks. The sides of the elastic pressing rods close to the middle of the drying drum are all arranged as inclined surfaces matching the matching rod.

[0012] Preferably, a plurality of arc-shaped deceleration plates arranged in a wave shape are fixedly installed on the wavy surface of the deceleration plate. The arc-shaped deceleration plates are used to reduce the falling speed of the iron slag on the deceleration plate.

[0013] Preferably, on the left end of the deceleration plate and on the side in the same rotation direction as the drying drum, a plurality of material distribution blocks are fixedly installed. The plurality of material distribution blocks are evenly distributed along the width direction of the deceleration plate, and the right end of the material distribution block is arranged in a triangular structure. The material distribution blocks are used to make the iron slag fall evenly and re-crush the iron slag powder.

[0014] Preferably, the high-throw plate is arranged in a hollow structure. The material blocking member includes a dislocation plate installed in the high-throw plate. The dislocation plate is slidably connected to the high-throw plate along the length direction of the high-throw plate through a connecting spring, and dislocation holes are formed at positions corresponding to the square holes on the dislocation plate.

[0015] Preferably, the left end of the dislocation plate slidably penetrates through the high-throw plate and is fixedly installed with a material blocking plate. One end of the material blocking plate away from the dislocation plate is inclined towards the side in the same rotation direction as the dislocation plate and the drying drum.

[0016] The beneficial effects of the present invention are as follows: 1. The present invention adopts the method of dividing the inside of the drying drum into a pretreatment area, a main drying area, and a final drying area, and performs different treatments for different stages of the water content of the iron slag powder. Among them, a crushing unit is arranged in the pretreatment area of the drying drum to perform extrusion and crushing treatment on the iron slag powder with a higher water content, preventing the iron slag powder with a higher water content from caking and ensuring the quality of the final product; a material leveling unit is arranged in the main drying area of the drying drum to prevent the iron slag powder from accumulating, ensuring that the lifted iron slag powder can fully contact with the hot air and ensuring uniform and effective drying of the iron slag powder; a high-throw unit is arranged in the final drying area of the drying drum to increase the lifting height of the iron slag powder, extend the contact time between the iron slag powder and the hot air, and further ensure that the iron slag powder is thoroughly dried.

[0017] 2. When the extrusion plate performs extrusion and crushing on the iron slag powder, the present invention squeezes the iron slag powder through the crushing block in a triangular structure, thereby ensuring thorough crushing of the caked iron slag powder and further ensuring the quality of the final product.

[0018] 3. The present invention reduces the falling speed of the iron slag powder from the deceleration plate through the arc-shaped deceleration plate, and at the same time makes the iron slag powder fall evenly from the deceleration plate through the material distribution blocks, further ensuring the uniform distribution of the iron slag powder and obtaining multiple breakings, and making the falling iron slag powder fully contact with the hot air.

[0019] 4. Through the settings of the high-throw plate, the dislocation holes, and the square holes, the present invention makes the iron slag powder be lifted at a higher height, ensures the uniform distribution of the iron slag powder, and further ensures that the iron slag powder is thoroughly dried. Description of the Drawings

[0020] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0021] Figure 1 It is a schematic three-dimensional structure diagram of the present invention.

[0022] Figure 2 It is a sectional view of a part of the structure of the present invention.

[0023] Figure 3 It is a schematic diagram of the partial structure inside the drying drum of the present invention.

[0024] Figure 4 It is a schematic three-dimensional structure diagram of a part of the crushing unit of the present invention.

[0025] Figure 5 It is a schematic diagram of the elastic reset rod, connecting rod and the sectioned extrusion plate of the present invention.

[0026] Figure 6 It is a schematic three-dimensional structure diagram of the slow-down plate, arc-shaped deceleration plate and material distribution block of the present invention.

[0027] Figure 7 It is a schematic three-dimensional structure diagram of the dislocation plate, dislocation hole, connecting spring and baffle of the present invention.

[0028] Reference numerals: 1, dryer; 11, drying drum; 12, material lifting plate; 13, driving member; 14, feeding member; 141, fixing plate; 142, connecting rod; 143, elastic pressing rod; 2, crushing unit; 21, material deflecting plate; 22, aggregate trough; 23, extruding member; 231, extrusion plate; 232, connecting rod; 233, elastic reset rod; 234, crushing block; 235, transmission rod; 236, mating rod; 3, material leveling unit; 31, slow-down plate; 311, arc-shaped deceleration plate; 312, material distribution block; 4, high-throwing unit; 41, high-throwing plate; 42, baffle member; 421, dislocation plate; 422, connecting spring; 423, dislocation hole; 424, baffle. Detailed implementation manners

[0029] The embodiments described below are exemplary and are only used to explain the present invention and should not be construed as a limitation to the present invention. For those not specified in the embodiments regarding specific technologies or conditions, they shall be carried out according to the technologies or conditions described in the literature in the field or according to the product specifications.

[0030] Refer to Figure 1 and Figure 2, A drying device for processing iron slag powder, including a dryer 1. The dryer 1 includes a continuously rotating drying drum 11. A plurality of material lifting plates 12 are fixedly installed inside the drying drum 11, and the material lifting plates 12 are arranged in an inclined structure for driving iron filings to move to the left. A crushing unit 2, a material leveling unit 3, and a high-throwing unit 4 are sequentially installed in the drying drum 11 from right to left, so that the drying drum 11 is divided into a pretreatment area, a main drying area, and a final drying area from right to left in sequence. The continuous rotation of the drying drum 11 is realized by a driving member 13 installed on its right side.

[0031] It should be noted that the dryer 1 further includes a heating chamber sleeved outside the drying drum 11, and the drying drum 11 is rotatably connected to the heating chamber. The heating chamber is used to heat the air inside the drying drum 11, so that the hot air dries the iron slag powder. A frame is installed on the heating chamber, and it is fixed at the working position through the frame. Supporting wheels for supporting the drying drum 11 and assisting its rotation are installed on both the left and right sides of the frame. Moreover, the dryer 1 further includes a feeding member installed on the left side of the drying drum 11, and the feeding member is used to feed the dried iron slag powder. The feeding member is composed of an outer cover and a spiral plate installed inside the outer cover.

[0032] It should be noted that the driving member 13 includes a gear ring fixedly sleeved outside the right side of the drying drum 11. A gear is meshed and installed below the gear ring. The gear is connected to the output shaft of the motor fixedly installed on the frame by means of spline fit. By starting the motor to drive the gear to rotate, the gear and the gear ring cooperate to drive the drying drum 11 to rotate continuously.

[0033] The present invention is used for drying iron slag powder. The present invention can perform different treatments for different stages of the water content of the iron slag powder, thereby ensuring thorough drying of the iron slag powder and ensuring the quality of the final product. Specifically, first, connect the right side of the drying drum 11 to an external feeding device, and continuously feed the iron slag powder into the drying drum 11 through the feeding device. Then start the driving member 13 to drive the drying drum 11 to rotate continuously, and at the same time start the heating chamber to make the heating chamber dry the iron slag powder inside the drying drum 11. The drying drum 11 drives the material lifting plates 12 to rotate. The material lifting plates 12 can drive the iron slag powder to move to the left, and at the same time the material lifting plates 12 can lift the iron slag powder, so that the iron slag powder can contact the hot air inside the drying drum 11 to realize the drying of the iron slag.

[0034] Meanwhile, under the action of the lifting plate 12, the iron slag powder passes through the pretreatment area, the main drying area, and the final drying area in sequence. When the iron slag powder is just being dried, the water content of the iron slag powder is relatively high, and the iron slag powder may agglomerate. At this time, the crushing unit 2 installed in the pretreatment area of the drying drum 11 can crush the agglomerated iron slag powder, thereby ensuring the quality of the final product. Then, the material leveling unit 3 installed in the main drying area of the drying drum 11 can make the iron slag powder evenly distributed, thereby preventing the iron slag powder from piling up excessively and ensuring that the iron slag powder can be in full contact with hot air. Next, the high-throwing unit 4 installed in the final drying area of the drying drum 11 can increase the lifting height of the iron slag powder, thereby increasing the contact time between the iron slag powder and hot air and ensuring that the iron slag powder is thoroughly dried. Finally, the dried iron slag powder moves to the position corresponding to the blanking part on the left side of the drying drum 11, and the blanking part discharges the dried iron slag powder.

[0035] Refer to Figure 1 and Figure 2 , a feeding part 14 is installed on the right side of the drying drum 11. The feeding part 14 includes a fixing plate 141 rotatably installed at the right end inside the drying drum 11. A feeding port is opened in the middle of the fixing plate 141. The right end of the fixing plate 141 is fixedly connected to the frame of the dryer 1 through two connecting rods 142 arranged symmetrically front and back and having a U-shaped structure; wherein, the feeding port of the fixing plate 141 is connected to an external feeding device.

[0036] When continuously feeding the iron slag powder through the feeding device, the iron slag powder enters the drying drum 11 through the feeding port of the fixing plate 141. When the drying drum 11 rotates, since the fixing plate 141 is fixedly connected to the frame of the dryer 1 through the connecting rod 142, the fixing plate 141 always remains stationary.

[0037] Refer to Figure 2 , Figure 3 and Figure 4 , the crushing unit 2 includes a plurality of deflector plates 21 fixedly installed in the drying drum 11. A plurality of uniformly arranged and flared aggregate grooves 22 are formed on one side of the deflector plate 21 in the same rotation direction as the drying drum 11. An extrusion member 23 for extruding the iron slag is installed on the deflector plate 21; the deflector plate 21 and the lifting plate 12 corresponding to the pretreatment area of the drying drum 11 are arranged circumferentially in a staggered manner.

[0038] The crushing unit 2 is used to crush the agglomerated iron slag powder in the pretreatment area of the drying drum 11; specifically, when the iron slag powder enters the pretreatment area of the drying drum 11, the water content of the iron slag powder is relatively high at this time. When the drying drum 11 rotates, the drying drum 11 drives the material distributing plate 21 to rotate. Since the iron slag powder is basically located at the lower side inside the drying drum 11, when the material distributing plate 21 rotates to the lower limit position, the material distributing plate 21 can drive the iron slag powder to rotate and make the iron slag powder distributed on the material distributing plate 21. The iron slag powder can slide into the aggregate chute 22 with a flared structure. At the same time, the extrusion member 23 can extrude the iron slag powder in the aggregate chute 22. Then, when there is an agglomeration phenomenon in the iron slag powder, the extrusion member 23 can extrude and crush the agglomerated iron slag powder. And when the material distributing plate 21 rotates from the lower limit position to a certain height, the iron slag powder can fall from the material distributing plate 21 into the drying drum 11.

[0039] Refer to Figure 2 、 Figure 4 and Figure 5 The extrusion member 23 includes an extrusion plate 231 distributed on the same side as the rotation direction of the material distributing plate 21 and the drying drum 11. And grid holes staggered with the aggregate chute 22 are formed on the extrusion plate 231. At the four corners on the side of the extrusion plate 231 close to the material distributing plate 21, L-shaped connecting rods 232 are fixedly installed. The horizontal section of the connecting rod 232 is located on the side opposite to the rotation direction of the material distributing plate 21 and the drying drum 11, and the horizontal section of the connecting rod 232 is fixedly connected with an elastic reset rod 233 fixedly installed on the material distributing plate 21.

[0040] Refer to Figure 3 and Figure 4 On the opposite sides of two adjacent extrusion plates 231 from left to right, a plurality of transmission rods 235 are fixedly installed together. A mating rod 236 is fixedly installed in the middle of the right end of the rightmost extrusion plate 231.

[0041] Refer to Figure 3 Behind the left part of the fixing plate 141, a plurality of elastic pressing rods 143 are circumferentially and evenly distributed. And the right side of the elastic pressing rod 143 is fixedly connected with the fixing plate 141 through a fixing block. The side of the elastic pressing rod 143 close to the middle of the drying drum 11 is provided with an inclined surface that cooperates with the mating rod 236; among them, the elastic force of the elastic pressing rod 143 is much greater than that of the elastic reset rod 233.

[0042] Refer to Figure 3 、 Figure 4 and Figure 5, the extruding member 23 is used to extrude and crush the agglomerated iron slag powder; specifically, when the drying drum 11 drives the material distributing plate 21 to rotate, the material distributing plate 21 drives the extrusion plate 231 to rotate through the elastic reset rod 233 and the connecting rod 232. Before the material distributing plate 21 drives the iron slag powder to rotate, the extrusion plate 231 can drive the iron slag powder to rotate first. The iron slag powder falls on the material distributing plate 21 through the grid holes of the extrusion plate 231. Although the grid holes and the collecting grooves 22 of the material distributing plate 21 are arranged staggeredly, since the collecting grooves 22 are of a flared structure, the iron slag powder entering from the grid holes can be evenly distributed in multiple collecting grooves 22.

[0043] When the extrusion plate 231 drives the mating rod 236 to rotate to the corresponding position of the elastic pressing rod 143, the mating rod 236 drives the extrusion plate 231 to move towards the direction close to the material distributing plate 21 under the action of the inclined surface of the elastic pressing rod 143. At the same time, the extrusion plate 231 stretches the elastic reset rod 233 through the connecting rod 232. Since the elastic force of the elastic pressing rod 143 is much greater than that of the elastic reset rod 233, during this process, the elastic pressing rod 143 does not expand or contract. Because the grid holes and the collecting grooves 22 of the material distributing plate 21 are arranged staggeredly, the extrusion plate 231 can extrude the iron slag powder in the collecting grooves 22, realizing the crushing of the agglomerated iron slag powder.

[0044] When the extrusion plate 231 moves towards the direction close to the material distributing plate 21 to the limit position, the extrusion plate 231 can no longer move. At this time, the inclined surface cooperation between the mating rod 236 and the elastic pressing rod 143 will compress the elastic telescopic end of the elastic pressing rod 143. When the mating rod 236 and the elastic pressing rod 143 are separated, the extrusion plate 231 returns to the initial position under the resilience of the elastic reset rod 233. And there are multiple elastic pressing rods 143, so that the extrusion plate 231 can extrude the iron slag powder in the collecting grooves 22 multiple times, and the extrusion plate 231 is evenly stressed, ensuring the thorough extrusion and crushing of the agglomerated iron slag powder. A plurality of transmission rods 235 are connected between two adjacent extrusion plates 231 on the left and right, so that a plurality of extrusion plates 231 arranged left and right can synchronously extrude the iron slag powder in the corresponding collecting grooves 22.

[0045] Refer to Figure 4 and Figure 5 , a crushing block 234 corresponding to the collecting groove 22 is fixedly installed on one side of the extrusion plate 231 close to the corresponding material distributing plate 21, and the crushing block 234 is arranged in a triangular structure.

[0046] When the extrusion plate 231 extrudes and crushes the iron slag powder in the collecting groove 22, the extrusion plate 231 can drive the crushing block 234 to extrude the iron slag powder in the collecting groove 22, and the crushing block 234 is arranged in a triangular structure with the tip facing the collecting groove 22, so as to ensure the thorough crushing of the agglomerated iron slag powder.

[0047] Refer toFigure 2 and Figure 6 The material leveling unit 3 includes a plurality of retarder plates 31 fixedly installed in the drying drum 11. The side of the retarder plate 31 in the same rotation direction as the drying drum 11 is provided with a wavy structure; the retarder plate 31 is provided with an inclined structure for driving the iron slag powder to move leftward, and the retarder plate 31 and the lifting plates 12 corresponding to the main drying area of the drying drum 11 are arranged in a circumferential staggered manner.

[0048] The material leveling unit 3 is used to make the iron slag powder evenly distributed; specifically, when the iron slag powder enters the main drying area of the drying drum 11, the iron slag powder is initially dried at this time, and the water content in the iron slag powder decreases. When the drying drum 11 rotates, the drying drum 11 drives the retarder plate 31 to rotate. When the retarder plate 31 rotates to the lower limit position, the retarder plate 31 can drive the iron slag powder to rotate and make the iron slag powder distributed on the retarder plate 31. When the retarder plate 31 rotates from the lower limit position to a certain height, the iron slag powder falls from the retarder plate 31 into the drying drum 11, and the retarder plate 31 is provided with an inclined structure, so that the iron slag powder can move leftward while falling from the retarder plate 31.

[0049] The wavy structure of the retarder plate 31 can increase the moving stroke of the iron slag powder on the retarder plate 31, improve the dispersion effect of the iron gate powder through the retarder plate 31. When the iron slag powder on one retarder plate 31 completely falls, there are still multiple retarder plates 31 or lifting plates 12 rotating through the lower limit position, thereby increasing the dispersion degree of the iron slag powder, preventing the iron slag powder from excessive accumulation, and ensuring that the iron slag powder can fully contact with the hot air.

[0050] Refer to Figure 6 , a plurality of arc-shaped retarder plates 311 arranged in a wavy shape are fixedly installed on the wavy surface of the retarder plate 31, and the arc-shaped retarder plates 311 are used to reduce the falling speed of the iron slag on the retarder plate 31.

[0051] Refer to Figure 6 , on the left end of the retarder plate 31 and on the side in the same rotation direction as the drying drum 11, a plurality of material distributing blocks 312 are fixedly installed. The plurality of material distributing blocks 312 are evenly distributed along the width direction of the retarder plate 31, and the right end of the material distributing block 312 is provided with a triangular structure. The material distributing blocks 312 are used to make the iron slag fall evenly and re-crush the iron slag powder.

[0052] When the iron slag powder falls from the slow-down plate 31, the falling speed of the iron slag powder is reduced to a certain extent under the action of the wavy structure of the arc-shaped slow-down plate 311, and the iron slag powder can be dispersed. At the same time, when the iron slag powder moves leftward along the inclined slow-down plate 31, under the action of the material dividing block 312, the iron slag powder is further evenly dispersed and falls into the drying drum 11, so that the iron slag powder during the falling process can be in full contact with the hot air. Moreover, the right end of the material dividing block 312 is set as a triangular structure, which can also crush the iron slag powder again.

[0053] Refer to Figure 2 and Figure 7 , the high-throwing unit 4 includes a plurality of high-throwing plates 41 fixedly installed in the drying drum 11. A plurality of square holes are evenly arranged left and right on the high-throwing plate 41. A material blocking member 42 is installed on the high-throwing plate 41. The material blocking member 42 is used to block the square holes and increase the height of lifting the iron slag; the high-throwing plate 41 is set as an inclined structure for driving the iron slag powder to move leftward, and the high-throwing plate 41 and the lifting plate 12 corresponding to the final drying area of the drying drum 11 are arranged in a circumferential staggered manner.

[0054] The high-throwing unit 4 is used to increase the height of lifting the iron slag powder; specifically, when the iron slag powder enters the final drying area of the drying drum 11, at this time the iron slag powder is basically dried. When the drying drum 11 rotates, the drying drum 11 drives the high-throwing plate 41 to rotate. When the high-throwing plate 41 rotates to the lower limit position, the high-throwing plate 41 can drive the iron slag powder to rotate. When the high-throwing plate 41 rotates from the lower limit position to a certain height, the iron slag powder falls from the high-throwing plate 41 into the drying drum 11; by blocking the iron slag powder with the material blocking member 42, after the high-throwing plate 41 rotates from the lower limit position to a relatively high height, the iron slag powder can uniformly fall from the high-throwing plate 41, thereby increasing the height of lifting the iron slag powder, increasing the contact time between the hot air and the iron slag powder, and further ensuring that the iron slag powder is thoroughly dried.

[0055] Refer to Figure 2 and Figure 7 , the high-throwing plate 41 is set as a hollow structure. The material blocking member 42 includes a misaligned plate 421 installed in the high-throwing plate 41. The misaligned plate 421 is slidably connected to the high-throwing plate 41 along the length direction of the high-throwing plate 41 through a connecting spring 422. Misaligned holes 423 are formed at positions corresponding to the square holes on the misaligned plate 421.

[0056] Refer to Figure 2 and Figure 7 , the left end of the misaligned plate 421 slidably penetrates through the high-throwing plate 41 and is fixedly installed with a baffle plate 424. One end of the baffle plate 424 away from the misaligned plate 421 is inclined towards the same side as the rotation direction of the misaligned plate 421 and the drying drum 11.

[0057] The material baffle 42 is used to block the iron slag powder on the high-throw plate 41; specifically, initially, the misaligned holes 423 are aligned with the square holes of the high-throw plate 41 one by one. When the high-throw plate 41 rotates to the lower limit position, at this time, a small part of the iron slag powder located on the lower side inside the drying drum 11 can pass through the misaligned holes 423 and the square holes of the high-throw plate 41. The high-throw plate 41 drives the remaining majority of the iron slag powder to rotate. Since the iron slag powder moves and is conveyed to the left inside the drying drum 11, the iron slag powder can squeeze the baffle plate 424 to the left, causing the baffle plate 424 to drive the misaligned plate 421 to move to the left and stretch the connecting spring 422. As a result, the misaligned holes 423 of the misaligned plate 421 and the square holes of the high-throw plate 41 are arranged staggeredly. At this time, most of the iron slag powder on the high-throw plate 41 will not pass through the misaligned holes 423 and the square holes of the high-throw plate 41 and fall downward.

[0058] When the high-throw plate 41 rotates upward from the lower limit position, at this time, most of the iron slag powder moves to the left along the inclined high-throw plate 41 under the action of gravity. Most of the iron slag powder will not fall to the lower side inside the drying drum 11 under the blocking action of the baffle plate 424. A small part of the iron slag powder will fall from the side of the baffle plate 424 close to the center of the drying drum 11. When the high-throw plate 41 rotates to a certain height from the lower limit position, at this time, the iron slag powder corresponding to the baffle plate 424 accumulates too much, causing the iron slag powder to start falling to the lower side inside the drying drum 11, thereby increasing the lifting height of the iron slag powder. When some of the iron slag powder falls to the lower side inside the drying drum 11, the baffle plate 424 starts to overcome the pressure of the iron slag powder under the restoring force of the misaligned plate 421 and the connecting spring 422 and starts to move to the right to the initial position. As a result, the misaligned holes 423 of the misaligned plate 421 and the square holes of the high-throw plate 41 are aligned again, enabling the iron slag powder on the misaligned plate 421 to pass through the square holes of the high-throw plate 41 and fall downward. Thus, while increasing the lifting height of some of the iron slag powder, it can also ensure the uniform distribution of the iron slag powder and further ensure that the iron slag powder is thoroughly dried.

[0059] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A drying device for processing iron slag powder, comprising a dryer, the dryer comprising a continuously rotating drying drum, a plurality of lifting plates being fixedly installed in the drying drum, characterized in that: The drying drum is provided with a crushing unit, a material distribution unit and a high-throwing unit from right to left, so that the drying drum is divided into a pre-treatment area, a main drying area and a final drying area from right to left; The crushing unit comprises a plurality of material-dividing plates fixedly installed in the drying drum, a plurality of evenly arranged and flared collecting grooves are provided on the side of the material-dividing plate and the drying drum in the same rotation direction, and an extrusion piece for extruding iron slag is installed on the material-dividing plate; The material distribution unit comprises a plurality of deceleration plates fixedly installed in the drying drum, and the side of the deceleration plate and the drying drum having the same rotation direction as the drying drum is configured as a wave-shaped structure; The high-throw unit includes a plurality of high-throw plates fixedly installed in the drying drum, a plurality of square holes evenly arranged on the left and right are opened on the high-throw plates, and a material blocking piece is installed on the high-throw plates, which is used to block the square holes and increase the lifting height of the iron slag; The lifting plate, high throwing plate and deceleration plate are all configured as inclined structures for driving the iron slag powder to move to the left, and the high throwing plate, deceleration plate and material diverting plate are all circumferentially staggered with their corresponding lifting plates.

2. The drying device for iron slag powder processing according to claim 1, characterized in that: The continuous rotation of the drying drum is achieved by a driving member installed on its right side. A feeding member is installed on the right side of the drying drum. The feeding member includes a fixed plate rotatably installed on the right end of the inside of the drying drum. A feeding port is opened in the middle of the fixed plate. The right end of the fixed plate is fixedly connected to the frame of the dryer through two connecting rods that are symmetrically arranged front and back and have a U-shaped structure.

3. The drying device for processing iron slag powder according to claim 2, characterized in that: The extrusion member includes an extrusion plate distributed on the side where the material stripping plate and the drying drum rotate in the same direction, and the extrusion plate is provided with grille holes arranged alternately with the collecting trough, and L-shaped connecting rods are fixedly installed at the four corners of the extrusion plate close to the material stripping plate, the transverse section of the connecting rod is located on the side opposite to the rotation direction of the material stripping plate and the drying drum, and the transverse section of the connecting rod is fixedly connected to an elastic reset rod fixedly installed on the material stripping plate.

4. The drying device for processing iron slag powder according to claim 3, characterized in that: A crushing block corresponding to the collecting trough is fixedly installed on one side of the extrusion plate close to the corresponding material-diverting plate, and the crushing block is arranged in a triangular structure.

5. The drying device for processing iron slag powder according to claim 3, characterized in that: A plurality of transmission rods are fixedly installed on opposite sides of two adjacent extrusion plates on the left and right, and a matching rod is fixedly installed on the middle part of the right end of the extrusion plate located on the rightmost side.

6. The drying device for processing iron slag powder according to claim 5, characterized in that: A plurality of circumferentially uniformly arranged elastic pressure rods are distributed on the left rear of the fixed plate, and the right side of the elastic pressure rod is fixedly connected to the fixed plate through a fixed block, and one side of the elastic pressure rod close to the middle of the drying drum is set as an inclined surface matching the matching rod.

7. The drying device for processing iron slag powder according to claim 1, characterized in that: A plurality of arc-shaped deceleration plates which are evenly arranged in a wave shape are fixedly mounted on the wavy surface of the deceleration plate, and the arc-shaped deceleration plates are used to reduce the falling speed of the iron slag on the deceleration plate.

8. The drying device for processing iron slag powder according to claim 1, characterized in that: A plurality of dividing blocks are fixedly installed on the left end of the deceleration plate and on the side with the same rotation direction as the drying drum. The plurality of dividing blocks are evenly distributed along the width direction of the deceleration plate, and the right end of the dividing block is set as a triangular structure. The dividing block is used to make the iron slag fall evenly and then crush the iron slag powder.

9. The drying device for processing iron slag powder according to claim 1, characterized in that: The high-throw plate is configured as a hollow structure, and the material blocking member includes a dislocation plate installed in the high-throw plate. The dislocation plate is slidably connected to the high-throw plate along the length direction of the high-throw plate through a connecting spring, and dislocation holes are opened at positions corresponding to the square holes on the dislocation plate.

10. The drying device for processing iron slag powder according to claim 9, characterized in that: The left end of the dislocation plate slides through the high throw plate and is fixedly mounted with a material baffle plate, and one end of the material baffle plate away from the dislocation plate is tilted toward the side where the dislocation plate and the drying drum rotate in the same direction.

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