A coke thermal reactivity sample preparation device and sample preparation method
By designing a coke thermal reactive sample preparation device, the problem of uneven particle size of the experimental sample is solved by using crushing and molding technology, and the accuracy of experimental results and the reliability of sample forming are achieved.
Patent Information
- Application Number
- CN201911001164.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2019-10-21
- Publication Date
- 2024-12-24
- Estimated Expiration
- 2039-10-21
AI Technical Summary
The particle size uniformity and blocking degree of existing metallurgical coke thermal reactivity experimental samples are inconsistent, resulting in inaccurate experimental results.
A coke thermal reactive sample preparation device is designed, including a crushing chamber and a molding chamber, which is crushed by a crushing motor, crushing shaft and crushing teeth, and the crushed material is pressed into molding through an electric telescopic rod and extrusion plate to ensure that Each sample is the same size.
The accuracy of the experiment and sample forming rate are improved, and the reliability and accuracy of the experimental results are ensured.
Smart Images
Figure CN110864943B_ABST
Abstract
Description
Technical Field
[0001] The invention relates to a coke thermal reactivity sample preparation device and a sample preparation method thereof, and belongs to the technical field of coke experimental equipment in the metallurgical industry. Background Art
[0002] The thermal reactivity of metallurgical coke is an important quality indicator of coke for blast furnaces. With the large-scale smelting blast furnaces, the accuracy of the thermal performance of metallurgical coke plays a vital role in the blast furnace conditions. However, the existing experimental samples of the thermal reactivity of metallurgical coke have differences in particle size uniformity and block size, which leads to inaccurate experimental results. Therefore, we propose a coke thermal reactivity sample preparation device. Summary of the invention
[0003] The purpose of the present invention is to provide a coke thermal reactivity sample preparation device and a sample preparation method thereof, which can crush large pieces of material into uniform particle sizes and extrude them into experimental samples of uniform size, thereby improving the accuracy of the experiment and solving the problems existing in the background technology.
[0004] The technical solution of the present invention is:
[0005] A coke thermal reactivity sample preparation device comprises a shell, a spring, a slider, a support, a second discharge port, crushing teeth, a feed port, a crushing shaft, a crushing motor, a first discharge port, a first partition, an electric telescopic rod, an extrusion plate, a second partition, a molding box, a feed port, a crushing chamber, a storage chamber and a molding chamber. The shell is a closed box structure. The first partition is horizontally fixed in the box to divide the box into an upper half and a lower half. The upper half of the box is a crushing chamber. A crushing shaft is arranged in the crushing chamber. A plurality of crushing teeth are evenly arranged on the crushing shaft. Both ends of the crushing shaft are rotatably connected to the shell. The crushing motor is drivingly connected to the crushing shaft. The crushing chamber is provided with a feed port and two discharge ports. The two discharge ports are respectively the first discharge port and the second discharge port; the second partition is vertically fixed on the lower half of the box body, dividing the lower half of the box body into a left half and a right half, the left half is a storage chamber, and the right half is a molding chamber, the molding chamber is provided with a first movable door, and the storage chamber is provided with a second movable door, a spring is provided at the bottom of the molding chamber, a support is provided on the spring, and both sides of the support are slidably connected to the shell and the second partition through a slider respectively, a molding box is provided on the support, and an extrusion plate is fixed to the first partition through an electric telescopic rod, and the extrusion plate is located directly above the molding box, and the extrusion plate matches the molding box, and the molding chamber is provided with an inlet, and the second discharge port of the crushing chamber is connected to the inlet of the molding chamber.
[0006] A material baffle plate is provided at the material inlet of the molding chamber, and the molding box is located below the material baffle plate.
[0007] The material blocking plate is fixed on the shell, and the material blocking plate is arranged tilted toward the forming box.
[0008] Slide seats are fixed respectively on the shells and the second partition plates corresponding to the two sides of the support, and the slide seats are provided with slide grooves matched with the sliding blocks.
[0009] The support is provided with a limiting plate matched with the forming box.
[0010] The feed port of the pulverizing chamber is located at the top of the pulverizing chamber, and the first discharge port and the second discharge port are located at the bottom of the pulverizing chamber.
[0011] The first discharge port and the second discharge port of the crushing chamber are both provided with insert plates.
[0012] The first movable door and the second movable door are both provided with handles.
[0013] The storage room is provided with a plurality of third partitions which are horizontally arranged up and down.
[0014] A method for preparing a sample of thermal reactivity of coke, using a device for preparing a sample of thermal reactivity of coke as defined above, comprises the following steps:
[0015] ① Put the material into the crushing chamber of the shell from the feed port;
[0016] ② Start the crushing motor to drive the crushing shaft and crushing teeth to rotate and crush the materials;
[0017] ③ Take out the plug plate in the first discharge port and discharge the crushed material from the first discharge port for standby use;
[0018] ④ Close the first discharge port, remove the plug plate in the second discharge port, and let the crushed material flow into the molding box through the second discharge port, the inlet of the molding chamber and the baffle plate;
[0019] ⑤Control the electric telescopic rod to move downward until the extrusion plate squeezes the material in the molding box into shape;
[0020] ⑥Open the first movable door by the handle, take out the molding box from the support, and pour out the pressed sample in the molding box.
[0021] The beneficial effects of the present invention are:
[0022] (1) The present invention is provided with a pulverizing motor, a pulverizing shaft and pulverizing teeth. The pulverizing motor rotates to drive the pulverizing shaft to rotate, and the pulverizing shaft rotates to drive the pulverizing teeth to rotate, thereby achieving the purpose of pulverizing the material;
[0023] (2) The present invention is provided with an electric telescopic rod and an extrusion plate. When the material enters the forming box, the electric telescopic rod is controlled to extend to drive the extrusion plate to move downward, thereby achieving the purpose of pressing and forming the material. Moreover, the size of each sample participating in the experiment can be the same, thereby improving the accuracy of the experiment;
[0024] (3) The present invention sets a spring between the support and the shell to play a shock-absorbing role, avoid hard contact between the extrusion plate and the forming box, and improve the sample forming rate. The slider, the slide groove and the slide seat can ensure the stability of the support during the up and down movement, thereby ensuring the quality of the sample. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] Figure 1 It is a cross-sectional view of the present invention;
[0026] Figure 2 It is the front view of the present invention.
[0027] In the figure: shell 1, spring 2, slide 3, slider 4, limit plate 5, support 6, baffle plate 7, second discharge port 8, crushing teeth 9, feed port 10, crushing shaft 11, crushing motor 12, first discharge port 13, first partition 14, electric telescopic rod 15, extrusion plate 16, third partition 17, second partition 18, slide 19, forming box 20, second movable door 21, handle 22, first movable door 23, feed port 24, crushing chamber 30, storage chamber 40, forming chamber 50. DETAILED DESCRIPTION
[0028] The present invention will be further described below by way of examples with reference to the accompanying drawings.
[0029] See attached Figure 1-2A coke thermal reactivity sample preparation device comprises a shell 1, a spring 2, a slider 4, a support 6, a second discharge port 8, crushing teeth 9, a feed port 10, a crushing shaft 11, a crushing motor 12, a first discharge port 13, a first partition 14, an electric telescopic rod 15, an extrusion plate 16, a second partition 18, a forming box 20, a feed port 24, a crushing chamber 30, a storage chamber 40 and a forming chamber 50. The shell 1 is a closed box structure. The first partition 14 is horizontally fixed in the box, dividing the box into an upper half and a lower half. The upper half of the box is the crushing chamber 30. The crushing chamber 30 is provided with a crushing shaft 11, and a plurality of crushing teeth 9 are evenly arranged on the crushing shaft 11. Both ends of the crushing shaft 11 are rotatably connected to the shell 1. The crushing motor 12 is drivingly connected to the crushing shaft 11. The crushing chamber 30 is provided with a feed port 10 and two discharge ports. , the two discharge ports are respectively the first discharge port 13 and the second discharge port 8; the second partition 18 is vertically fixed on the lower half of the box body, dividing the lower half of the box body into a left half and a right half, the left half is a storage chamber 40, and the right half is a molding chamber 50, the molding chamber 50 is provided with a first movable door 23, and the storage chamber 40 is provided with a second movable door 21, a spring 2 is provided at the bottom of the molding chamber 50, a support 6 is arranged on the spring 2, and both sides of the support 6 are slidably connected with the shell 1 and the second partition 18 through a slider 4, the molding box 20 is arranged on the support 6, the extrusion plate 16 is fixed on the first partition 14 through an electric telescopic rod 15, the extrusion plate 16 is located directly above the molding box 20, and the extrusion plate 16 matches the molding box 20, the molding chamber 50 is provided with an inlet 24, and the second discharge port 8 of the crushing chamber 30 is connected with the inlet 24 of the molding chamber 50.
[0030] In this embodiment, refer to the attached Figure 1 , 2The lower left end of the front surface of the shell 1 is movably connected to the second movable door 21 through a hinge, and the lower right end of the front surface of the shell 1 is movably connected to the first movable door 23 through a hinge, and the left end of the front surface of the first movable door 23 and the right end of the front surface of the second movable door 21 are fixedly installed with a handle 22, the upper end of the inner cavity of the shell 1 is fixedly connected to the first partition 14, the left side of the shell 1 and the corresponding position of the top of the first partition 14 are provided with a first discharge port 13, the right side of the shell 1 and the corresponding position of the top of the first partition 14 are provided with a second discharge port 8, and the inner surfaces of the second discharge port 8 and the first discharge port 13 are both plugged with plug boards, and the end of the second discharge port 8 is fixedly connected to the first partition 14. The end extends to the lower end of the right side of the shell 1, and the inner cavity of the shell 1 and the corresponding position of the second discharge port 8 are fixedly connected with a baffle plate 7, and the inclination of the baffle plate 7 is 30% to 45%, and the right end of the bottom of the first partition 14 is movably connected with an extrusion plate 16 through an electric telescopic rod 15. When the material enters the forming box 20, the electric telescopic rod 15 is controlled to extend by an external controller. The electric telescopic rod 15 will drive the extrusion plate 16 to move downward while extending, so as to achieve the purpose of pressing and molding the material, so that the size of each sample participating in the experiment is the same, which improves the accuracy of the experiment. The left end of the bottom of the first partition 14 is connected to the inner cavity of the shell 1 A second partition 18 is fixedly connected between the left end of the bottom, a third partition 17 is fixedly connected between the left side of the second partition 18 and the right side of the inner cavity of the shell 1, and the number of the third partitions 17 is two to four, and the lower end of the right side of the second partition 18 and the lower end of the right side of the inner cavity of the shell 1 are both provided with a slide seat 19 of the slide groove 3, the right end of the bottom of the inner cavity of the shell 1 is movably connected with a support 6 through a spring 2, the spring 2 can play a shock-absorbing role to avoid hard contact between the extrusion plate 16 and the molding box 20, thereby improving the sample molding rate, a molding box 20 is placed on the top of the support 6, and the top of the support 6 and the left, rear and right ends of the molding box 20 are fixedly connected with a limiting plate 5, and Slide blocks 4 slidably connected to the slide groove 3 are provided on the left and right sides of the support 6, which can ensure the stability of the support 6 during the up and down movement, thereby ensuring the quality of the sample. A crushing motor 12 is fixedly installed on the upper end of the left side of the shell 1, and the output shaft of the crushing motor 12 is provided with a crushing shaft 11 with crushing teeth 9. The crushing motor 12 can be turned on by an external controller. The crushing motor 12 will drive the crushing shaft 11 to rotate while rotating, and the crushing shaft 11 will drive the crushing teeth 9 to rotate while rotating, thereby achieving the purpose of crushing the material. A feed port 10 is provided at the right end of the top of the shell 1, and the left end of the top of the feed port 10 is movably connected to a cover plate through a hinge.
[0031] The electric telescopic rod 15 is a common telescopic device in the art, and the model of its external controller is DATA-7311. At the same time, two connection terminals of the external controller are connected to a power plug through wires.
[0032] The cross section of the crushing teeth 9 is an acute angle type, and a plurality of crushing teeth 9 are uniformly welded on the crushing shaft 11 to crush the material.
[0033] A method for preparing a sample of coke thermal reactivity comprises the following steps:
[0034] A. Crushing: The material is put into the housing 1 from the feed port 10, and is crushed by the crushing motor 12, the crushing shaft 11 and the crushing teeth 9;
[0035] B. Standby: remove the insert plate on the inner surface of the first discharge port 13 and discharge the crushed material from the first discharge port 13;
[0036] C. Aggregation: Remove the insert plate on the inner surface of the second discharge port 8, and let the crushed material flow into the forming box 20 from the second discharge port 8;
[0037] D. Sample preparation: Control the electric telescopic rod 15 to move downward so that the extrusion plate 16 contacts the material in the forming box 20;
[0038] E. Taking out materials: Open the first movable door 23 through the handle 22, take out the forming box 20 from the surface of the support 6, and pour out the pressed products in the forming box 20.
Claims
1. A coke thermal reactivity sample preparation device, characterized in that: The invention comprises a housing (1), a spring (2), a slider (4), a support (6), a second discharge port (8), crushing teeth (9), a feed port (10), a crushing shaft (11), a crushing motor (12), a first discharge port (13), a first partition (14), an electric telescopic rod (15), an extrusion plate (16), a second partition (18), a molding box (20), a feed port (24), a crushing chamber (30), a storage chamber (40) and a molding chamber (50), wherein the housing (1) is closed. The box body structure comprises a first partition plate (14) fixed horizontally in the box body, dividing the box body into an upper half and a lower half, the upper half of the box body being a crushing chamber (30), a crushing shaft (11) being arranged in the crushing chamber (30), a plurality of crushing teeth (9) being evenly arranged on the crushing shaft (11), both ends of the crushing shaft (11) being rotatably connected to the housing (1), a crushing motor (12) being drivingly connected to the crushing shaft (11), the crushing chamber (30) being provided with a feed port (10) and two discharge ports, the two discharge ports being respectively The first material outlet (13) and the second material outlet (8) are respectively provided; the second partition (18) is vertically fixed to the lower half of the box body, and the lower half of the box body is divided into a left half and a right half, the left half is a storage chamber (40), and the right half is a molding chamber (50), the molding chamber (50) is provided with a first movable door (23), the storage chamber (40) is provided with a second movable door (21), a spring (2) is provided at the bottom of the molding chamber (50), a support (6) is provided on the spring (2), and two sides of the support (6) are respectively provided with The slider (4) is slidably connected to the housing (1) and the second partition (18); the forming box (20) is arranged on the support (6); the extrusion plate (16) is fixed to the first partition (14) via an electric telescopic rod (15); the extrusion plate (16) is located directly above the forming box (20); the extrusion plate (16) matches the forming box (20); the forming chamber (50) is provided with an inlet (24); and the second outlet (8) of the crushing chamber (30) is communicated with the inlet (24) of the forming chamber (50).
2. A coke thermal reactivity sample preparation device according to claim 1, characterized in that: A material baffle plate (7) is provided at the material inlet (24) of the molding chamber (50), and the molding box (20) is located below the material baffle plate (7).
3. A coke thermal reactivity sample preparation device according to claim 2, characterized in that: The material baffle plate (7) is fixed on the housing (1), and the material baffle plate (7) is arranged tilted toward the molding box (20).
4. A coke thermal reactivity sample preparation device according to claim 1, characterized in that: Slide seats (19) are fixed to the housing (1) and the second partition plate (18) corresponding to the two sides of the support (6), respectively. The slide seats (19) are provided with slide grooves (3) that match the sliders (4).
5. A coke thermal reactivity sample preparation device according to claim 1 or 4, characterized in that: The support (6) is provided with a limiting plate (5) which matches the forming box (20).
6. A coke thermal reactivity sample preparation device according to claim 1, characterized in that: The feed port (10) of the pulverizing chamber (30) is located at the top of the pulverizing chamber (30), and the first discharge port (13) and the second discharge port (8) are located at the bottom of the pulverizing chamber (30).
7. A coke thermal reactivity sample preparation device according to claim 1 or 6, characterized in that: Insert plates are provided in the first discharge port (13) and the second discharge port (8) of the pulverizing chamber (30).
8. A coke thermal reactivity sample preparation device according to claim 1, characterized in that: The first movable door (23) and the second movable door (21) are both provided with a handle (22).
9. A coke thermal reactivity sample preparation device according to claim 1, characterized in that: The storage chamber (40) is provided with a plurality of third partitions (17) arranged horizontally up and down.
10. A method for preparing a sample of coke thermal reactivity, characterized in that: A coke thermal reactivity sample preparation device as defined in any one of claims 1 to 9 is used, comprising the following steps: ① Feeding the material from the feed port (10) into the crushing chamber (30) of the housing (1); ② starting the crushing motor (12) to drive the crushing shaft (11) and the crushing teeth (9) to rotate and crush the material; ③ Taking out the insert plate in the first discharge port (13), and discharging the crushed material from the first discharge port (13) for standby use; ④ closing the first discharge port (13), removing the insert plate in the second discharge port (8), and allowing the crushed material to flow into the molding box (20) through the second discharge port (8), the inlet port (24) of the molding chamber (50), and the baffle plate (7); ⑤ Controlling the electric telescopic rod (15) to move downward until the extrusion plate (16) extrudes the material in the molding box (20) into shape; ⑥ Open the first movable door (23) by means of the handle (22), remove the molding box (20) from the support (6), and pour out the sample pressed and molded in the molding box (20).