Steel slag-iron aluminate cement and production device thereof

Abstract

The invention discloses steel slag-iron aluminate cement and a production device thereof, the steel slag-iron aluminate cement comprises the following raw materials: clinker, steel slag, gypsum and limestone, and the clinker, the steel slag, the gypsum and the limestone are mixed and ground through the production device to prepare the steel slag-iron aluminate cement; the production device comprises two supports, the grinding mechanism is installed in the cylindrical screen, the grinding particle size can be adjusted in the raw material grinding process through the grinding mechanism, the raw materials can be gradually crushed, the particle size is gradually reduced, and the raw materials are ground. The motor works to achieve synchronous movement and rotation of the two grinding rollers, the barrel-shaped screen can rotate, raw materials can be crushed and ground, the crushed raw materials can be screened and mixed, the quality of produced cement can be guaranteed, the situation that in the prior art, cement production needs to be achieved through cooperation of other equipment is avoided, and the production efficiency is improved. The production efficiency is low; and the production cost is increased.

Description

Technical Field

[0001] The invention relates to the technical field of cement, in particular to steel slag-alumina-ferrocement and a production device thereof. Background Art

[0002] Ferroaluminate cement has high early strength, good frost resistance, corrosion resistance and wear resistance, and is often used in emergency repair projects, marine engineering, etc. The preparation process of ferroaluminate cement mainly includes raw material preparation, mixing and homogenization, high-temperature calcination and grinding. Specifically:

[0003] Raw material preparation: Select qualified high-iron bauxite and other necessary auxiliary raw materials, such as limestone, gypsum, etc.

[0004] Mixing and homogenization: Mix high-iron bauxite and other raw materials in a certain proportion to ensure uniform mineral composition of cement clinker.

[0005] High temperature calcination: The mixed raw materials are sent into a high temperature kiln for calcination to form cement clinker with a specific mineral composition. The calcination temperature and time need to be adjusted according to the raw material characteristics and the target mineral composition.

[0006] Grinding: The calcined cement clinker is ground to increase its specific surface area and activity to facilitate subsequent hydration reaction and engineering application.

[0007] However, as my country's high-quality bauxite resources become increasingly scarce, the grade of high-iron bauxite continues to decrease, resulting in higher and higher production costs for alumina cement, which seriously restricts the production and application of the energy-saving and low-carbon alumina cement industry.

[0008] Steel slag is a kind of industrial solid waste formed in the metallurgical industry. Its effective components are iron oxide, aluminum oxide and calcium oxide. Because it contains free calcium oxide and magnesium oxide, steel slag has poor stability. The current national standard "General Portland Cement" GB 175 explicitly prohibits steel slag from being used as a mixed material to produce Portland cement, which seriously restricts the resource utilization of steel slag in the cement industry.

[0009] In the process of cement production, raw materials need to be mixed and ground to obtain cement products; the prior art publication number is CN113198367A, which is a cement production mixing device, including a mixing tank, a centrifugal screening screen, a screening screen driving assembly, a conveying assembly, a stirring and mixing assembly and a screening screen beating anti-blocking assembly, the screening screen driving assembly is arranged on the top wall of the mixing tank, a guide plate is arranged in the middle of the mixing tube, the guide plate is arranged in a funnel-shaped structure, a material guide port is arranged at the lowest end of the guide plate, the guide plate divides the mixing tank into a screening chamber and a mixing chamber, the centrifugal screening screen, the conveying assembly and the screening screen beating anti-blocking assembly are all arranged in the screening chamber, the stirring and mixing assembly is arranged in the mixing chamber, and a discharge port is arranged on the bottom wall of the mixing tank.

[0010] The above-mentioned shortcomings of the prior art are that, on the one hand, the iron and aluminum materials used in the production of ferroaluminate cement, namely high-iron bauxite, are in short supply and of low quality, which restricts the production and application of ferroaluminate cement. The steel slag containing effective components of iron oxide, aluminum oxide and calcium oxide cannot be effectively utilized as a resource due to stability and standard issues; on the other hand, the prior art can only mix and screen cement raw materials, while the grinding of raw materials requires additional equipment for processing, which increases the cost of cement production and requires the transfer of raw materials, thus reducing the efficiency of cement production. To this end, the present application proposes a steel slag-ferroaluminate cement and a production device thereof. Summary of the invention

[0011] The purpose of the present invention is to solve the above technical problems and to propose a steel slag-alumina-ferrocement and a production device thereof.

[0012] In order to achieve the above object, the present invention adopts the following technical solutions:

[0013] A steel slag-alumina-ferrocement comprises the following raw materials: clinker, steel slag, gypsum and limestone. The clinker, steel slag, gypsum and limestone are mixed and ground through a production device to produce the steel slag-alumina-ferrocement.

[0014] Preferably, the main components of the clinker are anhydrous calcium sulphoaluminate, calcium iron ore and dicalcium silicate.

[0015] The present invention also discloses a production device of steel slag-ferroaluminate cement, comprising two brackets, wherein the two brackets are provided with a mixing drum that can be driven to rotate, wherein a cylindrical screen is fixedly connected inside the mixing drum, and the cylindrical screen is fixedly connected to a plurality of guide plates;

[0016] An adjustable grinding mechanism; the grinding mechanism is installed inside the cylindrical screen, and the grinding mechanism can adjust the grinding particle size during the process of grinding the raw material, and can gradually crush the raw material to gradually reduce the particle size and grind it.

[0017] Preferably, two rotating rods are provided through the two brackets, two driving wheels are installed on the two rotating rods, two driven rings are fixed to the outer wall of the mixing barrel, and the driving wheels are matched with the driven rings.

[0018] Preferably, the grinding mechanism includes two mounting grooves arranged through both ends of the mixing cylinder, a circular plate is rotatably connected in the mounting groove, a through groove is arranged through the circular plate, two slidingly connected I-shaped blocks are buckled in the through groove, and a rotatably arranged driving rod is arranged through the two I-shaped blocks along the axial direction of the mixing cylinder, and a grinding roller is installed on the driving rod.

[0019] Preferably, it also includes a driving mechanism capable of driving the two grinding rollers to rotate, the driving mechanism includes a motor mounted on a bracket, the output end of the motor is fixedly connected to a power rod, a first fixed block is fixed on the circular plate, a rotatable cylinder is penetrated through the first fixed block, a first bevel gear is installed on the cylinder and the power rod, the two first bevel gears are meshed with each other, a second fixed block is fixed on two I-shaped blocks close to the first bevel gear, a first sleeve is penetrated through the second fixed block and is rotatably connected with the second fixed block, a second bevel gear is installed on the first sleeve and the driving rod, the two second bevel gears are meshed with each other, the interior of the first sleeve is rectangular, a first rectangular rod is slidably connected inside the first sleeve, and the first rectangular rod is fixedly connected to the cylinder.

[0020] Preferably, it also includes two transmission mechanisms that can drive the two grinding rollers to move synchronously, the transmission mechanism including a first reciprocating screw and a second reciprocating screw that pass through the bracket and are rotatably connected thereto, the first reciprocating screw and the second reciprocating screw pass through the I-shaped block on the same side and are cooperatively connected thereto, the first reciprocating screw is fixedly connected to the second reciprocating screw, a second sleeve that is rotatably arranged is passed through the bracket, the interior of the second sleeve is rectangular, a second rectangular rod is slidably connected in the second sleeve, the second rectangular rod is coaxially fixedly connected to the second bevel gear, the second reciprocating screw and the second sleeve are respectively fixedly connected with a first transmission wheel and a second transmission wheel, and the first transmission wheel and the second transmission wheel are connected by a first transmission belt.

[0021] Preferably, it also includes a linkage mechanism that can drive the rotating rod to rotate, the linkage mechanism includes a support block fixed on the bracket, a transmission rod with a rotatable arrangement is passed through the support block, a third bevel gear is fixed on the transmission rod and the rotating rod, the two third bevel gears are meshed with each other, a third transmission wheel is fixed on the transmission rod and the first reciprocating screw rod, and the two third transmission wheels are connected by a second transmission belt.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] 1. The motor can realize the synchronous movement and rotation of the two grinding rollers, so that the raw materials can be crushed and ground to different degrees.

[0024] 2. Through the rotation of the rotating rod and the two third bevel gears, the first reciprocating screw and the second reciprocating screw rotating rod away from the motor side can be realized, and then the I-shaped blocks at both ends can be moved synchronously, so that the grinding roller can move more stably and the raw materials can be crushed and ground more stably.

[0025] 3. The distance between the two grinding rollers changes accordingly, which can provide space for the raw materials that cannot be crushed, so that the raw materials can be processed, crushed and ground by the grinding rollers; due to the continuous rotation of the cylindrical screen, the raw materials can be continuously transported to the grinding rollers, and the raw materials can be ground repeatedly.

[0026] 4. The rotating cylindrical screen can also screen the ground raw materials. The raw materials that pass through the cylindrical screen fall into the mixing drum, and the raw materials that cannot pass through the cylindrical screen are circulated and ground until they can pass through the cylindrical screen to ensure the quality of cement processing.

[0027] 5. The raw materials are transported back and forth between the two grinding rollers, so that the raw materials are turned and mixed. After grinding, the raw materials are mixed better and more fully, and fall into the rotating mixing drum to further mix the ground raw materials, thereby ensuring the quality of cement.

[0028] To sum up, the motor of the present invention can realize the synchronous movement and rotation of two grinding rollers, and can realize the rotation of the cylindrical screen, so that the raw materials can be crushed and ground and the crushed raw materials can be screened and mixed, thereby ensuring the quality of cement production and avoiding the disadvantages of the prior art that cement production can be achieved through the cooperation of other equipment, resulting in low production efficiency and increased production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a schematic diagram of the structure of a production device for steel slag-alumina-ferrocement proposed by the present invention;

[0030] Figure 2 A side view of a production device for steel slag-alumina-ferrocement proposed by the present invention;

[0031] Figure 3 This is a schematic diagram of the structure of a mixing drum and a driving wheel in a production device of steel slag-alumina-ferrocement proposed by the present invention;

[0032] Figure 4 This is a schematic structural diagram of a circular plate in a production device for steel slag-alumina-ferrocement proposed by the present invention;

[0033] Figure 5 This is a schematic structural diagram of the first casing in a production device for steel slag-alumina-ferrocement proposed by the present invention;

[0034] Figure 6 This is a schematic structural diagram of a mixing drum in a production device for steel slag-alumina-ferrocement proposed by the present invention;

[0035] Figure 7 The present invention provides a schematic structural diagram of a cylindrical screen in a production device for steel slag-alumina-ferrocement.

[0036] In the figure: 1 bracket, 2 mixing cylinder, 3 driven ring, 4 rotating rod, 5 driving wheel, 6 motor, 7 power rod, 8 support block, 9 third bevel gear, 10 second transmission belt, 11 circular plate, 12 transmission rod, 13 first reciprocating screw rod, 14 second reciprocating screw rod, 15 third transmission wheel, 16 through groove, 17 first fixed block, 18 first bevel gear, 19 first sleeve, 20 I-shaped block, 21 second bevel gear, 22 second fixed block, 23 first rectangular rod, 24 cylinder, 25 grinding roller, 26 driving rod, 27 cylindrical screen, 28 guide plate, 29 mounting groove, 30 second rectangular rod, 31 second sleeve, 32 first transmission wheel, 33 second transmission wheel, 34 first transmission belt. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0038] Aiming at the problem that steel slag has poor stability and national standards prohibit steel slag from being used as a mixed material to produce silicate cement, and how to maximize the digestion and utilization of steel slag under the premise of ensuring strength and safety, the present invention proposes a steel slag-ferroaluminate cement, comprising the following raw materials: clinker, steel slag, gypsum and limestone. The clinker, steel slag, gypsum and limestone are mixed and ground through a production device to form the steel slag-ferroaluminate cement, wherein the main components of the clinker are anhydrous calcium sulfoaluminate, calcium iron ore and dicalcium silicate.

[0039] Specifically: Raw material preparation: select steel slag of qualified quality (maximum steel slag admixture) and other necessary auxiliary raw materials, such as limestone, gypsum, etc.; Mixing and homogenization: Mix steel slag and other raw materials in a certain proportion to ensure uniform mineral composition of cement clinker; High-temperature calcination: send the mixed raw materials into a high-temperature kiln for calcination to form cement clinker with a specific mineral composition. Calcination temperature and time need to be adjusted according to the characteristics of the raw materials and the target mineral composition. Grinding: Grind the calcined cement clinker to increase its specific surface area and activity, which is convenient for subsequent hydration reaction and engineering application, solving the problem of steel slag stability and the inability to be applied on a large scale in the cement industry, and realizing the resource utilization of bulk solid waste.

[0040] Reference Figure 1-Figure 7The present invention also discloses a production device of steel slag-ferroaluminate cement, comprising two brackets 1, on which a mixing drum 2 that can be driven to rotate is provided, a discharge port can be provided through the mixing drum 2, and the discharge port is shielded by a baffle plate, and a feeding port is provided through one side of the mixing drum 2 so as to add raw materials into a cylindrical screen 27; wherein the feeding port, the discharge port and the baffle plate are not shown in the figure; a cylindrical screen 27 is fixedly connected in the mixing drum 2, and a plurality of guide plates 28 are fixedly connected to the cylindrical screen 27; two rotating rods 4 that are rotatably provided are provided through the two brackets 1, and two driving wheels 5 are installed on the two rotating rods 4, and two driven rings 3 are fixed on the outer wall of the mixing drum 2, and the driving wheel 5 is arranged in cooperation with the driven ring 3, wherein the driving wheel 5 can be a driving gear, and the driven ring 3 is a gear ring, and the gear ring is fixed to the outside of the mixing drum 2.

[0041] An adjustable grinding mechanism; the grinding mechanism is installed inside the cylindrical screen 27. The grinding mechanism can adjust the particle size of the raw material during the grinding process, and can gradually crush the raw material to gradually reduce the particle size and grind it.

[0042] The grinding mechanism is further explained in detail: the grinding mechanism includes two mounting grooves 29 arranged through the two ends of the mixing drum 2, and a circular plate 11 is rotatably connected in the mounting grooves 29. A through groove 16 is penetrated on the circular plate 11, and two slidingly connected I-shaped blocks 20 are buckled in the through grooves 16. The grooves on the I-shaped blocks slide against the side walls of the circular plate 11, so that the I-shaped blocks 20 are buckled on the circular plate 11, so that the I-shaped blocks 20 can slide stably on the circular plate 11; a rotatably arranged driving rod 26 is penetrated on the two I-shaped blocks 20 along the axial direction of the mixing drum 2, and a grinding roller 25 is installed on the driving rod 26.

[0043] It also includes a driving mechanism capable of driving the two grinding rollers 25 to rotate, the driving mechanism includes a motor 6 mounted on the bracket 1, the output end of the motor 6 is fixedly connected to the power rod 7, a first fixed block 17 is fixed on the circular plate 11, a cylinder 24 rotatably arranged is penetrated on the first fixed block 17, a first bevel gear 18 is installed on the cylinder 24 and the power rod 7, the two first bevel gears 18 are meshed with each other, a second fixed block 22 is fixed on the two I-shaped blocks 20 close to the first bevel gear 18, a first sleeve 19 rotatably connected to the second fixed block 22 is penetrated, a second bevel gear 21 is installed on the first sleeve 19 and the driving rod 26, the two second bevel gears 21 are meshed with each other, the interior of the first sleeve 19 is rectangular, a first rectangular rod 23 is slidably connected inside the first sleeve 19, the first rectangular rod 23 is fixedly connected to the cylinder 24, so that the first rectangular rod 23 and the first sleeve 19 can rotate and slide.

[0044] It also includes two transmission mechanisms that can drive the two grinding rollers 25 to move synchronously, the transmission mechanism includes a first reciprocating screw 13 and a second reciprocating screw 14 that penetrate the bracket 1 and are rotatably connected thereto, the first reciprocating screw 13 and the second reciprocating screw 14 penetrate the I-shaped block 20 on the same side and are cooperatively connected thereto, the first reciprocating screw 13 and the second reciprocating screw 14 are fixedly connected, a second sleeve 31 that is rotatably arranged is penetrated through the bracket 1, the interior of the second sleeve 31 is rectangular, a second rectangular rod 30 is slidably connected in the second sleeve 31, the second rectangular rod 30 is coaxially fixedly connected to the second bevel gear 21, a first transmission wheel 32 and a second transmission wheel 33 are fixedly connected to the second reciprocating screw 14 and the second sleeve 31 respectively, the first transmission wheel 32 and the second transmission wheel 33 are connected by a first transmission belt 34, the diameter of the first transmission wheel 32 is larger than the diameter of the second transmission wheel 33, so that the deceleration effect is achieved through transmission.

[0045] It also includes a linkage mechanism that can drive the rotating rod 4 to rotate, the linkage mechanism includes a support block 8 fixed on the bracket 1, a transmission rod 12 that is rotatably arranged runs through the support block 8, a third bevel gear 9 is fixed on the transmission rod 12 and the rotating rod 4, the two third bevel gears 9 are meshed with each other, a third transmission wheel 15 is fixed on the transmission rod 12 and the first reciprocating screw rod 13, and the two third transmission wheels 15 are connected by a second transmission belt 10.

[0046] When the present invention is used, raw materials are added into the cylindrical screen 27 through the feed port, and then the motor 6 is started;

[0047] The motor 6 drives the power rod 7 to rotate, the power rod 7 drives the first bevel gear 18 to rotate, the first bevel gear 18 drives the cylinder 24 to rotate, the cylinder 24 drives the two first rectangular rods 23 to rotate, the first rectangular rod 23 drives the first sleeve 19 and the second bevel gear 21 to rotate, and the two second bevel gears 21 drive the driving rod 26 to rotate, and the driving rod 26 drives the grinding roller 25 to rotate;

[0048] The rotation of the second bevel gear 21 drives the second rectangular rod 30 and the second sleeve 31 to rotate, the second sleeve 31 rotates the second transmission wheel 33, and the first transmission wheel 32 rotates under the transmission of the first transmission belt 34, thereby realizing the rotation of the second reciprocating screw 14, and the rotation of the second reciprocating screw 14 drives the first reciprocating screw 13 to rotate. Since the I-shaped block 20 cannot rotate in the through groove 16, the first reciprocating screw 13 and the second reciprocating screw 14 can realize the relative movement of the two I-shaped blocks 20 when they rotate, thereby driving the driving rod 26 and the grinding roller 25 to move, so that the two grinding rollers 25 move relative to each other;

[0049] The rotation of the first reciprocating screw 13 drives the third transmission wheel 15 to rotate. Under the transmission of the second transmission belt 10, the transmission rod 12 is rotated, and the rotation of the transmission rod 12 drives the third bevel gear 9 to rotate. The rotation of the rotating rod 4 is driven by the two third bevel gears 9. The rotation of the rotating rod 4 drives the driving wheel 5 to rotate. The rotation of the driving wheel 5 drives the driven ring 3 and the mixing drum 2 to rotate. The rotation of the mixing drum 2 drives the cylindrical screen 27 to rotate. The rotation of the cylindrical screen 27 drives the guide plate 28 to rotate. The rotation of the guide plate 28 drives the raw material to rotate. When the guide plate 28 and the raw material move to the upper side, the raw material at this time separates from the guide plate 28 due to gravity, and is guided by the guide plate 28 and falls between the two grinding rollers 25. The rotation of the two grinding rollers 25 can squeeze and crush the fallen raw material.

[0050] Among them, through the rotation of the rotating rod 4 and the two third bevel gears 9, the first reciprocating screw 13 and the second reciprocating screw 14 away from the motor 6 can be rotated, so as to achieve the synchronous movement of the I-shaped blocks 20 at both ends, so that the grinding roller 25 can move more stably, and the crushing and grinding of the raw materials can be more stable; when the two grinding rollers 25 move, the first sleeve 19 and the first rectangular rod 23 slide relative to each other;

[0051] It should be noted that the rotation of the first reciprocating screw 13 and the second reciprocating screw 14 causes the two grinding rollers 25 to move relative to each other and then move back to each other, and so on; when the two grinding rollers 25 move relative to each other, the distance between the two grinding rollers 25 decreases, so that the particle size of the raw material can be changed, but as the first reciprocating screw 13 and the second reciprocating screw 14 rotate, the two grinding rollers 25 separate again, so that the distance between the two grinding rollers 25 increases; because when the guide plate 28 pours the material and falls between the two grinding rollers 25, the raw material will collide with the grinding rollers 25, so that not all of the raw materials fall between the two grinding rollers 25. If the two grinding rollers 25 are only continuously reduced, part of the raw materials will not be ground and crushed by the grinding rollers 25, resulting in a reduction in the effect of grinding the raw materials. Since part of the raw materials cannot be ground into powder, the quality of cement is also reduced.

[0052] Therefore, the distance between the two grinding rollers 25 changes accordingly, which can provide space for the raw materials that cannot be crushed, so that the raw materials can be processed, crushed and ground by the grinding rollers 25; due to the continuous rotation of the cylindrical screen 27, the raw materials can be continuously transported to the grinding rollers 25, and the raw materials can be ground repeatedly;

[0053] The rotating cylindrical screen 27 can also screen the ground raw materials, and the raw materials passing through the cylindrical screen 27 fall into the mixing drum 2 and are temporarily stored through the mixing drum 2;

[0054] In addition, the raw materials are transported back and forth between the two grinding rollers 25, so that the raw materials are tumbled and mixed. After grinding, the raw materials are mixed better and more fully, and fall into the rotating mixing drum 2 to further mix the ground raw materials, thereby ensuring the quality of the cement.

[0055] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A steel slag-alumina-ferrocement, characterized in that: The steel slag-alumina-ferrocement comprises the following raw materials: clinker, steel slag, gypsum and limestone. The clinker, steel slag, gypsum and limestone are mixed and ground through a production device to produce the steel slag-alumina-ferrocement.

2. The steel slag-alumina ferrocement according to claim 1, characterized in that: The main components of the clinker are anhydrous calcium sulphoaluminate, calcium iron ore and dicalcium silicate.

3. A production device for steel slag-alumina ferrocement, used for producing the steel slag-alumina ferrocement according to any one of claims 1 to 2, comprising two brackets (1), characterized in that: A mixing cylinder (2) capable of being driven to rotate is provided on the two brackets (1), a cylindrical screen (27) is fixedly connected inside the mixing cylinder (2), and a plurality of guide plates (28) are fixedly connected to the cylindrical screen (27); An adjustable grinding mechanism; the grinding mechanism is installed inside the cylindrical screen (27); the grinding mechanism can adjust the particle size of the raw material during the grinding process, and can gradually crush the raw material to gradually reduce the particle size and grind it.

4. The production device of steel slag-alumina ferrocement according to claim 3, characterized in that: Two rotating rods (4) are provided through the two brackets (1) and are arranged to rotate. Two driving wheels (5) are installed on the two rotating rods (4). Two driven rings (3) are fixed to the outer wall of the mixing barrel (2). The driving wheels (5) are arranged in cooperation with the driven rings (3).

5. The production device of steel slag-alumina ferrocement according to claim 3, characterized in that: The grinding mechanism comprises two mounting grooves (29) penetrating the two ends of the mixing cylinder (2), a circular plate (11) being rotatably connected in the mounting grooves (29), a through groove (16) penetrating the circular plate (11), two I-shaped blocks (20) being slidably connected in the through grooves (16), a rotatably arranged driving rod (26) penetrating the two I-shaped blocks (20) along the upper axis direction of the mixing cylinder (2), and a grinding roller (25) being mounted on the driving rod (26).

6. The production device of steel slag-alumina ferrocement according to claim 5, characterized in that: The invention also comprises a driving mechanism capable of driving the two grinding rollers (25) to rotate, the driving mechanism comprising a motor (6) mounted on the bracket (1), the output end of the motor (6) being fixedly connected to a power rod (7), a first fixed block (17) being fixed to the circular plate (11), a rotatably arranged cylinder (24) being passed through the first fixed block (17), a first bevel gear (18) being mounted on the cylinder (24) and the power rod (7), the two first bevel gears (18) being meshed with each other, a second fixed block (22) being fixed to two I-shaped blocks (20) close to the first bevel gear (18), a first sleeve (19) being passed through the second fixed block (22) being rotatably connected thereto, a second bevel gear (21) being mounted on the first sleeve (19) and the driving rod (26), the two second bevel gears (21) being meshed with each other, the interior of the first sleeve (19) being in a rectangular shape, a first rectangular rod (23) being slidably connected inside the first sleeve (19), the first rectangular rod (23) being fixedly connected to the cylinder (24).

7. The production device of steel slag-alumina ferrocement according to claim 6, characterized in that: The invention also comprises two transmission mechanisms capable of driving the two grinding rollers (25) to move synchronously, the transmission mechanisms comprising a first reciprocating screw (13) and a second reciprocating screw (14) penetrating the bracket (1) and being rotatably connected thereto, the first reciprocating screw (13) and the second reciprocating screw (14) penetrating the I-shaped block (20) on the same side and being cooperatively connected thereto, the first reciprocating screw (13) and the second reciprocating screw (14) being fixedly connected, a second sleeve (31) being rotatably arranged penetrating the bracket (1), the interior of the second sleeve (31) being rectangular, a second rectangular rod (30) being slidably connected inside the second sleeve (31), the second rectangular rod (30) being coaxially fixedly connected to the second bevel gear (21), the second reciprocating screw (14) and the second sleeve (31) being respectively fixedly connected to a first transmission wheel (32) and a second transmission wheel (33), the first transmission wheel (32) and the second transmission wheel (33) being connected via a first transmission belt (34).

8. The production device of steel slag-alumina ferrocement according to claim 7, characterized in that: The invention also comprises a linkage mechanism capable of driving the rotating rod (4) to rotate, the linkage mechanism comprising a support block (8) fixed on the bracket (1), a transmission rod (12) arranged to rotate is passed through the support block (8), a third bevel gear (9) is fixed on the transmission rod (12) and the rotating rod (4), two third bevel gears (9) are meshed with each other, a third transmission wheel (15) is fixed on the transmission rod (12) and the first reciprocating screw rod (13), and the two third transmission wheels (15) are connected via a second transmission belt (10).

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