A hot press for scrap steel slag and a hot press forming process

Abstract

The present application relates to hot pressing equipment technical field, the present application provides a kind of scrap steel slag hot press and hot pressing forming process, in which a kind of scrap steel slag hot press includes machine case and is arranged on the hot pressing mechanism and separating mechanism of machine case, hot pressing mechanism is used to heat press raw material into product row, and product row is continuously output;Separating mechanism is located below hot pressing mechanism, is used to receive the product row that hot pressing mechanism continuously outputs, and is separated into multiple products.The separating mode is similar to "break off" product row, rather than scattered by height difference, so as to avoid the violent collision between products and the impact with ground.Through the above technical scheme, the technical problem that the product hot pressed in the related art is in row state, and scattered into single product by height difference can generate more slag is solved.

Description

TECHNICAL FIELD

[0001] Embodiments of the present application relate to the technical field of hot pressing equipment, in particular to a waste steel slag hot press and a hot pressing forming process. BACKGROUND

[0002] With the development of the steel industry, waste steel slag is a byproduct with huge output. Recycling and utilizing waste steel slag can not only alleviate resource pressure, but also reduce environmental pollution, which has significant economic and environmental benefits, and has become a research hotspot in the steel industry and related environmental protection fields.

[0003] In order to facilitate subsequent transportation and sales, waste steel slag usually needs to be heated and hot pressed to form a standard shape. At present, the industry generally uses hot pressing counter-rollers with forming grooves on the surface for hot pressing operation. Such hot pressing counter-rollers can continuously extrude and form the heated waste steel slag and output it when working. Because there is a connecting edge between adjacent forming grooves during the hot pressing process, the output products are connected together through the connecting edge between adjacent products, so that the final output products are in the shape of a rectangular array of multiple products.

[0004] In order to separate the products in the array into single products to meet the needs of subsequent transportation and sales, the method of breaking up the products in the array by means of the height difference when the products are discharged is generally used at present, so as to separate the products in the array into single products. However, due to the collision between the products and the impact with the ground, a large amount of slag is generated, increasing the difficulty of recycling and processing, and a large amount of dust is also generated during the breaking-up process.

[0005] Therefore, it has become a problem to be solved in the field of waste steel slag hot pressing to develop a waste steel slag hot press and a hot pressing forming process that can effectively separate the waste steel slag products in the array after hot pressing, while reducing the generation of slag and dust pollution. SUMMARY

[0006] To overcome the above defects, embodiments of the present application provide a waste steel slag hot press and a hot pressing forming process, which solves the technical problem that the products hot pressed in the related art are in an array state and breaking up the products into single products by means of the height difference will generate a large amount of slag.

[0007] According to one aspect, at least one embodiment of the present application provides a waste steel slag hot press for hot pressing raw materials into a product array that is continuously output and disconnecting the connecting edge between adjacent two products, comprising a machine box and a hot pressing mechanism and a separation mechanism arranged in the machine box, the hot pressing mechanism comprising two hot pressing rollers symmetrically arranged in the machine box; the separation mechanism is located below the two hot pressing rollers and is used to receive the product array formed between the two hot pressing rollers and separate adjacent two products.

[0008] The separating mechanism comprises limiting rods and guide plates, the limiting rods are arranged in pairs in the cabinet, the limiting rods are used for accommodating the connecting edges between adjacent two rows of products in the product row to limit the conveying direction of the product row, the guide plates are arranged in pairs in the cabinet, the guide plates form spaces for the same row of products to pass through in sequence, the guide plates extend symmetrically to one side away from the symmetry plane of the two hot pressing rollers from top to bottom, the guide plates are used for changing the conveying direction of the same row of products to break the connecting edges between the adjacent two rows of products in the row, and the guide plates are provided in at least two pairs.

[0009] For example, the waste steel slag hot pressing machine provided by at least one embodiment of the present application further comprises:

[0010] The top of the cabinet is provided with a hopper, the hopper is used for conveying raw materials between the two hot pressing rollers, the circumferential surface of the hot pressing roller has a forming groove, and the two hot pressing rollers can rotate towards each other to hot press the raw materials into the product row by means of the forming groove.

[0011] For example, the waste steel slag hot pressing machine provided by at least one embodiment of the present application further comprises:

[0012] The hopper is conical and gradually decreases in diameter from top to bottom, a discharging auger is rotatably arranged in the hopper, the discharging auger has spiral blades, and the spiral blades gradually decrease in diameter from top to bottom.

[0013] For example, the waste steel slag hot pressing machine provided by at least one embodiment of the present application further comprises:

[0014] The cabinet is symmetrically provided with two conveying roller groups, the two conveying roller groups are correspondingly located below the two hot pressing rollers, and are used for receiving and downwardly conveying the product row formed by the hot pressing rollers to guide the product row into the space between the two guide plates.

[0015] For example, the waste steel slag hot pressing machine provided by at least one embodiment of the present application further comprises:

[0016] The conveying roller group comprises a transmission shaft, an annular wire mesh and an elastic supporting mechanism, the transmission shaft is rotatably arranged in the cabinet, the annular wire mesh is concentrically arranged on the outer periphery of the transmission shaft and is spaced from the transmission shaft, is used for contacting the product row, and the elastic supporting mechanism is located between the outer wall of the transmission shaft and the inner wall of the annular wire mesh and is used for elastically supporting the annular wire mesh.

[0017] For example, the waste steel slag hot pressing machine provided by at least one embodiment of the present application further comprises:

[0018] The elastic supporting mechanism comprises a supporting rod, a supporting plate and a spring, the supporting rod is arranged on the transmission shaft and slides along the radial direction of the transmission shaft, the supporting plate is arranged at the outer end of the supporting rod and extends along the axial direction of the transmission shaft, the annular wire mesh sleeve is arranged on the supporting plate, and the spring is sleeved on the supporting rod and acts on the supporting plate and the outer circumferential wall of the transmission shaft at two ends, respectively, so as to provide the force for the supporting plate to tightly support the annular wire mesh.

[0019] For example, the steel slag hot press provided by at least one embodiment of the present application further comprises:

[0020] The bottom of the machine box is provided with a discharge port, and a vibrating sieve plate is arranged below the machine box, the vibrating sieve plate is used for receiving single products separated by the separating mechanism and screening out slag.

[0021] For example, the steel slag hot press provided by at least one embodiment of the present application further comprises:

[0022] The side of the machine box is provided with a negative pressure collection box, a negative pressure pipeline is connected between the bottom surface of the vibrating sieve plate and the negative pressure collection box, and the negative pressure collection box is used for collecting slag and powder screened out by the vibrating sieve plate.

[0023] For example, the steel slag hot press provided by at least one embodiment of the present application further comprises:

[0024] A conveying device is arranged below the output end of the vibrating sieve plate, and the conveying device is used for receiving and conveying single products dropped by the vibrating sieve plate.

[0025] For example, the steel slag hot press provided by at least one embodiment of the present application further comprises:

[0026] S1, pretreatment: the steel slag is loaded into a rotary kiln for heating and calcination, and the calcined raw material is screened to remove ring forming and unqualified materials;

[0027] S2, hot pressing: the raw material is sent into the machine box and hot pressed into a product row between two hot pressing rollers;

[0028] S3, scattering: the product row is separated into single products by the limiting rod and the guide plate of the separating mechanism;

[0029] S4, slag recovery: the vibrating sieve plate receives the single products separated in step S3 and screens out slag to recover the slag.

[0030] The embodiment of the present application has the following beneficial effects:

[0031] In the application, the product row output by the hot pressing mechanism is directly conveyed to the separating mechanism. The connecting edge between every two adjacent products in the product row enters between the corresponding two limiting rods, and the limiting rods limit the connecting edge to ensure that the product row is conveyed in the vertical direction. Meanwhile, when a column of products is conveyed to the position of the lower guide plate along with the product row, the column of products enters between the two guide plates, and the guide plates gradually change the conveying direction of the column of products. With the change of the conveying direction, the column of products starts from the lowermost product and is sequentially displaced relative to the adjacent products, and finally realizes the separation from the adjacent products. The separation mode in the scheme is similar to "breaking" the product row, rather than scattering by height difference, thereby avoiding the violent collision between the products and the impact with the ground.

[0032] Firstly, compared with the traditional way of scattering the product row by height difference, the separating mechanism of the limiting rods and the guide plates is adopted in the scheme, the product separation is realized by changing the conveying direction of the product, and the collision between the products and the ground is avoided, thereby reducing the debris and dust generated by the collision. Secondly, the collision position of the traditional scattering mode is random, the stress is uneven, and it is difficult to ensure the position of the product breakage, and the product itself may be broken. However, the breaking mode in the scheme has accurate stress position and can ensure that the breaking position is at the connecting edge, thereby ensuring the integrity of the product. Moreover, the traditional mode needs the product to pass through a certain conveying distance before separation, at this time, the product has been cooled for a period of time, the strength and hardness are improved, and the separation difficulty is increased. However, the separating mechanism in the scheme can perform the separation work when the product row is just hot-pressed out, and the product row is easier to separate at this time, thereby reducing the separation difficulty. BRIEF DESCRIPTION OF DRAWINGS

[0033] In order to more clearly illustrate the technical solutions in the embodiments of the application, the following will briefly introduce the drawings needed to be used in the description of the embodiments of the application. Obviously, the drawings in the following description are only some example embodiments of the application. Other drawings can be obtained by those skilled in the art according to the contents of the example embodiments of the application and the drawings without paying any creative labor.

[0034] Figure 1 It is a structure schematic view of a waste steel slag hot pressing machine in an embodiment of the application;

[0035] Figure 2 It is a structure schematic view of a waste steel slag hot pressing machine in an embodiment of the application; Figure 1

[0036] Figure 3 It is an enlarged view of A in the embodiment; Figure 2

[0037] Figure 4 It is an enlarged view of A in the embodiment; Figure 1 ​​A schematic diagram of the product row structure in the embodiment;

[0038] Figure 5 for Figure 1 A schematic diagram of the separation mechanism in the embodiment;

[0039] Figure 6 for Figure 1 A schematic diagram of the hot pressing mechanism in the embodiment;

[0040] Figure 7 for Figure 1 The embodiment shows a schematic diagram of the conveyor roller assembly.

[0041] In the diagram: 1. Chassis; 2. Hot pressing mechanism; 3. Separation mechanism; 301. Limiting rod; 302. Guide plate; 201. Hopper; 202. Hot pressing roller; 2021. Forming trough; 203. Discharge auger; 4. Conveying roller assembly; 401. Drive shaft; 402. Annular wire mesh; 403. Elastic support mechanism; 4031. Support rod; 4032. Support plate; 4033. Spring; 5. Vibrating screen plate; 6. Negative pressure collection box; 7. Negative pressure pipeline; 8. Conveying device. Detailed Implementation

[0042] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it.

[0043] To keep the drawings concise, each drawing only schematically shows the parts relevant to the invention; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0044] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0045] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature can include that the first and second features are in direct contact, or can include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature is "on", "above" and "over" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the first feature is higher in horizontal height than the second feature. The first feature is "under", "below" and "underneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the first feature is lower in horizontal height than the second feature.

[0046] In the description of the present embodiment, the terms "upper", "lower", "left", "right" and the like orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of description and simplification of operation, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0047] In addition, in the description of the present application, the terms "first", "second" and the like are only used for differentiation in description and cannot be understood as indicating or implying relative importance.

[0048] As Figures 1-7 shown, it shows a waste steel slag hot press in an embodiment of the present application, which comprises a machine box 1 and a hot pressing mechanism 2 and a separation mechanism 3 arranged on the machine box 1. The machine box 1 is the basic support structure of the entire hot press, and the hot pressing mechanism 2 comprises two hot pressing rollers 202 mounted on the machine box 1, which are used to hot press the heated waste steel slag into a standard-shaped product row and continuously output, so as to form a product row formed by a plurality of product rectangular arrays and adjacent products connected by a connecting edge. The separation mechanism 3 is located below the hot pressing mechanism 2 and is used to receive the product row output by the hot pressing mechanism 2 and separate it into a plurality of single products. The limiting rods 301 are arranged in pairs on the machine box 1, which can ensure that the connecting edge can be accommodated between the two limiting rods 301, and are used to limit the conveying direction of the product row. The guide plates 302 are also arranged in pairs on the machine box 1 and can contact and change the conveying direction of the product row, so that it gradually separates from the adjacent product row.

[0049] Working principle: The product row output by the hot pressing mechanism 2 is directly conveyed to the separation mechanism 3. The connecting edge between every two adjacent products in the product row will enter between the corresponding two limiting rods 301, and the limiting rods 301 limit the connecting edge to ensure that the product row is conveyed vertically. At the same time, when a column of products is conveyed to the position of the guide plate 302 below,

[0050] The guide plate 302 gradually changes the conveying direction of the product column. As the conveying direction changes, the product column starts from the lowermost product and gradually displaces relative to the adjacent products one by one, and finally achieves separation from the adjacent products. The separation method in this scheme is similar to "breaking" the product column, rather than scattering by height difference, thereby avoiding the violent collision between products and the impact with the ground.

[0051] Firstly, compared with the traditional method of scattering the product column by height difference, the separation mechanism 3 in this scheme uses the limiting rod 301 and the guide plate 302 to change the conveying direction of the product to achieve separation, thereby avoiding the collision between products and the ground, and reducing the debris and dust generated by the collision. Secondly, the collision position in the traditional scattering method is random, the force is uneven, and it is difficult to ensure the position of product breakage, which may cause the product itself to break. However, the breaking method in this scheme has an accurate force position and can ensure that the breakage position is at the joint, thereby ensuring the integrity of the product. Moreover, the traditional method requires the product to pass through a certain conveying distance before separation, at which time the product has been cooled for a period of time, the strength and hardness have improved, and the separation difficulty has increased. However, the separation mechanism 3 in this scheme can perform separation work when the product column is just hot-pressed out, at which time the product column is easier to separate, thereby reducing the separation difficulty.

[0052] In some examples, as shown in Figure 3 and Figure 5 , the guide plate 302 extends obliquely from top to bottom to the side away from the symmetry plane of the two hot-pressing rollers 202, and the guide plate 302 is used to change the conveying direction of the same product column to break the joint between the two adjacent product columns. The guide plate 302 is provided with at least two pairs, and the conveying directions of adjacent two pairs of guide plates 302 are arranged in opposite directions. Assuming that the guide plate 302 corresponding to the lower side of one of the product columns is bent to the left at the bottom, and the guide plate 302 corresponding to the lower side of the adjacent product column is bent to the right at the bottom.

[0053] Working principle: When the product column output by the hot-pressing mechanism 2 is conveyed downward to the position of the guide plate 302, each product column will enter the corresponding guide plate 302. Due to the bending of the bottom end of the guide plate 302 to the side, the product will be subjected to a lateral force of the guide plate 302 during conveying along the guide plate 302, thereby gradually changing the conveying direction. Under the guiding action of the left-bent bottom end of the guide plate 302, the conveying direction of one of the two adjacent product columns gradually deviates to the left, and under the guiding action of the right-bent bottom end of the guide plate 302, the conveying direction of the other product column gradually deviates to the right. The conveying directions of the two adjacent product columns are opposite, thereby facilitating separation.

[0054] In some examples, as shown in Figure 6As shown, the hopper 201 is mounted on the casing 1 and is cone-shaped with a diameter that gradually decreases from top to bottom, which facilitates the natural accumulation of raw materials towards the discharge port under gravity. A discharge auger 203, also cone-shaped with a diameter that gradually decreases from top to bottom, is rotatably mounted inside the hopper 201. Hot press rollers 202 are mounted in pairs and rotate on the casing 1. Each hot press roller 202 has a forming groove 2021 machined on its circumference, and the two hot press rollers 202 rotate in opposite directions. The forming grooves 2021 on the two hot press rollers 202 are positioned correspondingly to ensure accurate extrusion and shaping of the raw material during the hot pressing process.

[0055] Working Principle: After being heated, the waste steel slag is poured into hopper 201 and naturally gathers towards the bottom discharge port under gravity. The discharge auger 203 rotates under the drive of the drive device on the casing 1, its spiral blades gradually pushing the raw material from the upper part of hopper 201 to the lower part. The raw material discharged from hopper 201 falls between two hot press rollers 202. As the hot press rollers 202 rotate, the raw material is gradually filled into the forming grooves 2021 on the circumference of the hot press rollers 202. The two hot press rollers 202 press against each other, applying high pressure to the raw material in the forming grooves 2021, causing the waste steel slag to gradually form a product conforming to the shape of the forming grooves 2021. Due to the continuous rotation of the hot press rollers 202, the raw material is continuously fed in and hot-pressed, ultimately forming a continuous row of products consisting of several rectangular arrays, which are then continuously output.

[0056] In some examples, such as Figure 7 As shown, a pair of conveyor roller sets 4 are installed on the housing 1, located below the product row, to provide conveying force to the product row near the guide plate 302. The conveyor roller set 4 consists of a drive shaft 401, an annular wire mesh 402, and an elastic support mechanism 403. The drive shaft 401 is rotatably mounted on the housing 1, and the annular wire mesh 402 is sleeved on the elastic support mechanism 403. The elastic support mechanism 403 is located between the annular wire mesh 402 and the drive shaft 401, providing elastic support for the annular wire mesh 402. The elastic support mechanism 403 includes a support rod 4031, a support plate 4032, and a spring 4033. The support rod 4031 is slidably mounted on the drive shaft 401 along its radial direction. The support plate 4032 is located at the end of the support rod 4031, and the spring 4033 is sleeved on the support rod 4031, with its two ends acting on the support plate 4032 and the outer peripheral wall of the drive shaft 401, respectively.

[0057] Working principle: the motor installed on the case 1 drives the transmission shaft 401 to rotate, and the transmission shaft 401 drives the annular wire mesh 402 to rotate synchronously through the elastic support mechanism 403. The annular wire mesh 402 is in direct contact with the product row surface, and under the action of friction, it provides downward conveying force for the product row, so that the product row can continuously approach the guide plate 302, ensuring that the product row can smoothly enter the guide plate 302 area for separation. When the annular wire mesh 402 contacts the product row, the annular wire mesh 402 deforms under the extrusion of the product row, forming a local depression, so as to better fit the surface shape of the product row. The support plate 4032 always provides support force to the annular wire mesh 402 under the elastic force of the spring 4033, so that the annular wire mesh 402 can tightly fit the surface of the product row. When the product row leaves the annular wire mesh 402, the elastic force of the spring 4033 makes the support plate 4032 drive the annular wire mesh 402 to restore to the original state.

[0058] Because the surface shape of the product row is irregular, the conventional conveying device cannot well fit the surface, and good conveying effect cannot be obtained. In the present scheme, the structure of the annular wire mesh 402 is adopted according to the irregular surface shape of the product row. The annular wire mesh 402 can deform through extrusion force when it contacts the product row, so as to form a depression that adapts to the surface shape of the product row, thereby obtaining good conveying effect.

[0059] In some examples, as shown in Figure 2 The vibrating sieve plate 5 is arranged on the case 1 and located directly below the separation mechanism 3. The vibrating sieve plate 5 is connected to the case 1 through elastic connecting pieces. The vibrating motor is installed on the side of the vibrating sieve plate 5 to provide vibration power for the vibrating sieve plate 5. The negative pressure collection box 6 is arranged beside the case 1. The air inlet of the negative pressure collection box 6 is connected to the bottom surface of the vibrating sieve plate 5 through the negative pressure pipeline 7, and the air outlet is connected to the negative pressure generating device to form a negative pressure environment in the negative pressure collection box 6.

[0060] Working principle: when the separation mechanism 3 separates the product row into single products, the products fall onto the vibrating sieve plate 5. The vibrating motor drives the vibrating sieve plate 5 to vibrate at high frequency. Under the action of vibration, the slag and fine particles generated in the separation process pass through the sieve holes, realizing the separation of the products and the slag.

[0061] The negative pressure collection box 6 is connected to the bottom surface of the vibrating sieve plate 5 through the negative pressure pipeline 7, and a negative pressure environment is formed in the negative pressure collection box 6 under the action of the negative pressure generating device. The slag and powder screened by the vibrating sieve plate 5 are sucked into the negative pressure pipeline 7 under the action of negative pressure, and finally collected into the negative pressure collection box 6. At the same time, the airflow generated by the negative pressure contacts the separated single products, thereby cooling the products and improving the efficiency of the subsequent packaging process.

[0062] In some examples, as shown in Figure 1And Figure 2 As shown, a conveying device 8 is arranged below the output end of the vibrating sieve plate 5, and is used to receive and convey the single product dropped from the vibrating sieve plate 5. The conveying device 8 is preferably a conveying chain plate to withstand the high temperature of the product. When the single product drops from the vibrating sieve plate 5, it still has a relatively high temperature. The conveying device 8 is used to convey the product to one side, on the one hand, the multiple products can be spread on the conveying device 8, facilitating the cooling operation, on the other hand, the product collecting position is away from the equipment, avoiding the falling product from accidentally contacting the operator and causing accidents.

[0063] In some examples, a waste steel slag hot pressing forming process is also included, and a waste steel slag hot press is used, including the following steps:

[0064] S1, pretreatment: the waste steel slag is loaded into a rotary kiln for heating and calcination, and the calcined raw material is screened to remove ring forming and unqualified materials;

[0065] S2, hot pressing: the raw material is sent into the machine box 1 and hot pressed into a product row between the two hot pressing rollers 202;

[0066] S3, scattering: the limiting rod 301 and the guide plate 302 of the separating mechanism 3 are used to separate the product row into single products;

[0067] S4, slag recovery: the vibrating sieve plate 5 receives the single product separated in step S3 and screens out the slag to recover the slag.

[0068] In this process, the waste steel slag is heated and calcined to reshape it through hot pressing, so that the standard shape product is obtained for transportation and sales; and the product row output by the hot pressing mechanism 2 can be separated into single products by the separating mechanism 3, which is convenient for subsequent transportation and sales; in addition, the slag in the process can be recovered, avoiding resource waste.

[0069] The length of the separated single product is about 14CM, and the width is about 5CM, which is relatively small in size. Under the same volume, compared with a single large specification product, multiple small specification products have a small size, which on the one hand facilitates packaging and transportation, and on the other hand, during subsequent calcination, a larger heating area can be obtained, improving the heating efficiency.

[0070] It should be noted that the above examples are only used to illustrate the technical solutions of the present application and are not limiting. Although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced by equivalents without departing from the spirit and scope of the present application, and all should be covered in the scope of the claims of the present application.

Claims

1. A scrap slag hot press for hot pressing a raw material into a continuous output of products in a row, and disconnecting a connecting edge between two adjacent products, characterized in that, The application relates to a hot-pressing and separating device, which comprises a cabinet (1), a hot-pressing mechanism (2) and a separating mechanism (3) arranged in the cabinet (1), the hot-pressing mechanism (2) comprises two hot-pressing rollers (202) symmetrically arranged in the cabinet (1), and the separating mechanism (3) is arranged below the two hot-pressing rollers (202) and used for receiving a product row formed between the two hot-pressing rollers (202) and separating two adjacent products. The separating mechanism (3) comprises limiting rods (301) and guide plates (302), the limiting rods (301) are arranged in pairs in the cabinet (1), the limiting rods (301) are used for accommodating connecting edges between two adjacent product rows of the product row, the guide plates (302) are arranged in pairs in the cabinet (1), spaces for sequentially passing through the same product row are formed between the two guide plates (302), the guide plates (302) are inclinedly extended from top to bottom to one side away from the symmetric surface of the two hot-pressing rollers (202), the guide plates (302) are used for changing the conveying direction of the same product row, so that the connecting edges between the two adjacent product rows are disconnected, and the guide plates (302) are provided with at least two pairs of guide plates (302), the conveying directions of the guide plates (302) of the adjacent two pairs of guide plates (302) are oppositely arranged, and the connecting edges between the two adjacent product rows are disconnected.

2. A scrap-steel-slag hot press according to claim 1, characterized in that The top of the cabinet (1) is provided with a hopper (201), the hopper (201) is used for conveying raw materials between the two hot-pressing rollers (202), the circumferential surface of the hot-pressing roller (202) is provided with a forming groove (2021), and the two hot-pressing rollers (202) can rotate towards each other to heat-press and form the raw materials into the product row by means of the forming groove (2021).

3. A scrap-steel-slag hot press according to claim 2, characterized in that The hopper (201) is a taper with a gradually decreasing diameter from top to bottom, a discharging auger (203) is rotationally arranged in the hopper (201), the discharging auger (203) is provided with helical blades, and the diameters of the helical blades gradually decrease from top to bottom.

4. A scrap-steel-slag hot press according to claim 3, characterized in that Two conveying roller groups (4) are symmetrically arranged in the cabinet (1), the two conveying roller groups (4) are correspondingly arranged below the two hot-pressing rollers (202), and are used for receiving and downwardly conveying the product row formed by the hot-pressing rollers (202), so as to guide the product row into the space between the two guide plates (302).

5. A scrap-steel-slag hot press according to claim 4, characterized in that The conveying roller group (4) comprises a transmission shaft (401), an annular wire net (402) and an elastic supporting mechanism (403), the transmission shaft (401) is rotationally arranged in the cabinet (1), the annular wire net (402) is concentrically arranged on the outer periphery of the transmission shaft (401) and is spaced from the transmission shaft (401), is used for contacting the product row, and the elastic supporting mechanism (403) is arranged between the outer wall of the transmission shaft (401) and the inner wall of the annular wire net (402) and is used for elastically supporting the annular wire net (402).

6. A scrap-steel-slag hot press according to claim 5, characterized in that The elastic supporting mechanism (403) comprises a supporting rod (4031), a supporting plate (4032) and a spring (4033), the supporting rod (4031) is arranged on the transmission shaft (401) and slides along the radial direction of the transmission shaft (401), the supporting plate (4032) is arranged at the outer end of the supporting rod (4031) and extends along the axial direction of the transmission shaft (401), the annular wire mesh (402) is sleeved on the supporting plate (4032), and the spring (4033) is sleeved on the supporting rod (4031), and the two ends of the spring (4033) are arranged on the supporting plate (4032) and the outer circumferential wall of the transmission shaft (401) respectively, so as to provide the force for the supporting plate (4032) to tightly support the annular wire mesh (402).

7. A scrap-steel-slag hot press according to claim 6, characterized in that The bottom of the cabinet (1) is provided with a discharge port, and a vibrating sieve plate (5) is arranged below the cabinet (1), the vibrating sieve plate (5) is used for receiving single products separated by the separating mechanism (3) and screening out slag.

8. A scrap-steel-slag hot press according to claim 7, characterized in that The side of the cabinet (1) is provided with a negative pressure collection box (6), and a negative pressure pipeline (7) is connected between the bottom surface of the vibrating sieve plate (5) and the negative pressure collection box (6), the negative pressure collection box (6) is used for collecting slag and powder screened out by the vibrating sieve plate (5).

9. A scrap-steel-slag hot press according to claim 8, characterized in that The output end of the vibrating sieve plate (5) is provided with a conveying device (8), and the conveying device (8) is used for receiving and conveying single products dropped by the vibrating sieve plate (5).

10. A process for hot briquetting of steel slag using a hot briquetting machine as claimed in claim 9, wherein, The method comprises the following steps: S1 pretreatment: the scrap steel slag is loaded into a rotary kiln for heating and calcination, and the calcined raw material is screened to remove ring forming and unqualified materials; S2 hot pressing: the raw material is sent into the cabinet (1) and hot pressed between two hot pressing rollers (202) to form a product row; S3 scattering: the limiting rod (301) and the guide plate (302) of the separating mechanism (3) are used to separate the product row into single products; S4 slag recovery: the vibrating sieve plate (5) receives the single products separated in step S3 and screens out slag to recover the slag.

Images