A coal screening and moisture conditioning device

Abstract

This utility model discloses a coal screening and moisture conditioning device in the field of coal processing technology. It includes a housing, a screening mechanism hot air blower, and a discharge hopper. The screening mechanism is connected to the housing. A mounting plate is fixedly connected to the rear end of the housing. The hot air blower is fixedly connected to the mounting plate for inputting hot airflow into the housing and screening mechanism. The discharge hopper is fixedly connected to the lower end of the housing. Advantages of this utility model: In this embodiment, a screening mechanism is provided. A driving component drives a spiral plate to rotate inside a screening cylinder with screening holes, driving the coal to move horizontally and spirally within the screening cylinder. As the coal tumbles with the spiral plate inside the screening cylinder, screening is achieved through the filter holes. The hot air blower inputs hot airflow into the screening cylinder and housing to dry and condition the coal. Furthermore, the direction of the hot airflow and the direction of coal movement form convection, improving the efficiency of coal drying and moisture conditioning.

Description

Technical Field

[0001] This utility model relates to the field of coal processing technology, specifically to a coal screening and moisture conditioning device. Background Technology

[0002] Due to constraints imposed by the coal washing and beneficiation process, the moisture content of purchased clean coal, and natural conditions, the moisture content of the coal used for charging coke ovens (the moisture content of purchased coal in the iron and steel coking industry varies and is generally high) is too high, fluctuating between 17% and 20% for different types of coal. This easily leads to an increase in water vapor carried in the coke oven gas, causing the smoke and dust removal vehicle to fail to ignite and operate normally, increasing coking energy consumption and severely affecting coking efficiency. Therefore, it is necessary to adjust the moisture content of the coal to meet the charging coal moisture index of 8% to 11%.

[0003] In existing technologies, the coal processing industry first adjusts the moisture content of coal by natural sun-drying or heating, and then uses mechanical screening mechanisms (such as vibrating filter plate structures) to screen the coal. Screening and moisture adjustment are two independent processes, resulting in low processing efficiency. Utility Model Content

[0004] The technical problem this invention aims to solve is that existing coal screening and moisture conditioning processes operate independently, resulting in low processing efficiency.

[0005] To achieve the above objectives, the technical solution provided by this utility model is as follows:

[0006] A coal screening and moisture conditioning device includes a housing, a screening mechanism hot air blower, and a discharge hopper. The screening mechanism is connected to the housing. An installation plate is fixed to the rear end of the housing. The hot air blower is fixed to the installation plate for inputting hot air flow to the housing and the screening mechanism. The discharge hopper is fixed to the lower end of the housing.

[0007] The screening mechanism includes a screening cylinder and a drive assembly. The screening cylinder has several screening holes and is horizontally fixed to the housing. A feed pipe is fixedly connected to the upper side of one end of the screening cylinder and extends out of the upper end of the housing. A discharge pipe is fixedly connected to the lower side of the other end of the screening cylinder and extends out of the lower end of the housing. The drive assembly is connected inside the screening cylinder and is used to drive the coal in the screening cylinder to rotate and move forward.

[0008] Furthermore, the box body is provided with a screening chamber, and the screening chamber is provided with a first mounting groove and a second mounting groove on both sides. The screening cylinder is horizontally arranged in the screening chamber, and the two ends of the screening cylinder are respectively inserted and fixedly installed in the first mounting groove and the second mounting groove.

[0009] Furthermore, the lower end of the screening chamber passes through the lower end of the box body and communicates with the upper end of the discharge hopper. The bottom surface of the discharge hopper is set as an inclined surface. The lower end outlet of the discharge hopper is fixedly connected to a first mounting bracket by bolts. A first sealing block is fixedly connected to the inner wall of the upper end of the first mounting bracket. The first sealing block is inserted and fitted into the lower end of the discharge hopper.

[0010] Furthermore, the upper end of the box body is provided with a first opening communicating with the first mounting groove, and the feed pipe extends out from the first opening. The lower end of the box body is provided with a second opening communicating with the second mounting groove, and the discharge pipe extends out from the second opening.

[0011] Furthermore, a second mounting bracket is fixedly installed at the lower end of the discharge pipe by bolts, and a second sealing block is fixedly connected to the inner wall of the upper end of the second mounting bracket. The second sealing block is inserted and fitted into the lower end of the discharge pipe.

[0012] Furthermore, the drive assembly includes a motor and a spiral plate. The motor is fixed to the outside of the housing, and the output end of the motor is fixed to a connecting shaft that rotates horizontally through the housing and the screening cylinder. The spiral plate is fixed to the connecting shaft and rotates to fit against the inner wall of the screening cylinder.

[0013] Furthermore, the hot air blower is equipped with an air outlet pipe, which is connected to the screening cylinder.

[0014] The beneficial effects of this utility model by adopting the above structure are as follows:

[0015] 1: It is equipped with a screening mechanism. The spiral plate is driven to rotate in the screening cylinder with screening holes through the drive component. The coal is driven to move horizontally and spirally in the screening cylinder. When the coal rolls in the screening cylinder with the spiral plate, screening can be achieved by using the filter holes.

[0016] 2: Equipped with a hot air blower, it can dry and condition the coal by introducing hot air into the screening cylinder and box. The direction of hot air flow forms convection with the direction of coal movement, which improves the efficiency of coal drying and conditioning. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the entire machine of this utility model.

[0018] Figure 2 This is a cross-sectional view of the component connection of this utility model.

[0019] Figure 3 This is a cross-sectional view of the box body of this utility model.

[0020] Figure 4 This is a cross-sectional view of the screening cylinder of this utility model.

[0021] Figure 5 This is a top view of the drive component of this utility model.

[0022] Explanation of reference numerals in the attached figures:

[0023] 1. Housing; 101. First mounting groove; 102. First opening; 103. Second mounting groove; 104. Second opening; 105. Screening chamber; 2. Screening mechanism; 201. Screening cylinder; 202. Feed pipe; 203. Discharge pipe; 204. Screening hole; 205. Second mounting frame; 206. Second sealing block; 3. Drive assembly; 301. Motor; 302. Connecting shaft; 303. Spiral plate; 4. Hot air blower; 401. Air outlet pipe; 5. Discharge hopper; 501. Inclined surface; 502. First mounting frame; 503. First sealing block. Detailed Implementation

[0024] like Figure 1-5 As shown, a coal screening and moisture conditioning device includes a housing 1, a screening mechanism 2, a hot air blower 4, and a discharge hopper 5. The screening mechanism 2 is connected inside the housing 1. An installation plate is fixedly connected to the rear end of the housing 1. The hot air blower 4 is fixedly connected to the installation plate for inputting hot air flow to the housing 1 and the screening mechanism 2. The discharge hopper 5 is fixedly connected to the lower end of the housing 1.

[0025] like Figure 2 , 4 As shown in Figure 5, the screening mechanism 2 includes a screening cylinder 201 and a drive assembly 3. The screening cylinder 201 has several screening holes 204. The screening cylinder 201 is horizontally fixed inside the housing 1. A feed pipe 202 is fixedly connected to the upper side of one end of the screening cylinder 201 and extends out of the upper end of the housing 1. A discharge pipe 203 is fixedly connected to the lower side of the other end of the screening cylinder 201 and extends out of the lower end of the housing 1. The drive assembly 3 is connected inside the screening cylinder 201 and is used to drive the coal in the screening cylinder 201 to rotate and move forward. The drive assembly 3 includes a motor 301 and a spiral plate 303. The motor 301 is fixed to the outside of the housing 1. The output end of the motor 301 is fixedly connected to a connecting shaft 302 that rotates horizontally and passes through the housing 1 and the screening cylinder 201. The spiral plate 303 is fixedly connected to the connecting shaft 302. The spiral plate 303 is rotatably fitted to the inner wall of the screening cylinder 201. After the coal enters the screening cylinder 201 from the feed pipe 202, the motor 301 drives the spiral plate 303 to rotate, thereby driving the coal to move horizontally forward in the screening cylinder 201 along with the spiral plate 303. When the coal spirals forward, it continuously and disorderly tumbles and rolls in the screening cylinder 201, thereby using the screening holes 204 to screen the coal. The screened coal in the screening cylinder 201 is collected by the discharge pipe 203. The lower end of the discharge pipe 203 is fixedly installed with a second mounting bracket 205 by bolts. The upper inner wall of the second mounting bracket 205 is fixedly connected with a second sealing block 206. The second sealing block 206 is inserted and fitted to the lower end of the discharge pipe 203. The opening and closing of the discharge pipe 203 is controlled by the second mounting bracket 205.

[0026] like Figure 2 , 3 As shown, the housing 1 has a screening chamber 105, and the screening chamber 105 has a first mounting groove 101 and a second mounting groove 103 on both sides. The screening cylinder 201 is horizontally arranged in the screening chamber 105. The upper end of the housing 1 has a first opening 102 communicating with the first mounting groove 101, and the feed pipe 202 extends out of the first opening 102. The lower end of the housing 1 has a second opening 104 communicating with the second mounting groove 103, and the discharge pipe 203 extends out of the second opening 104. The two ends of the screening cylinder 201 are respectively inserted and fixedly installed in the first mounting groove 101. The screening cylinder 201 is stably and horizontally fixed in the box body 1 within the loading groove 101 and the second mounting groove 103. The lower end of the screening chamber 105 passes through the lower end of the box body 1 and communicates with the upper end of the discharge hopper 5. The bottom surface of the discharge hopper 5 is set as an inclined surface 501. The lower end outlet of the discharge hopper 5 is fixedly connected to the first mounting bracket 502 by bolts. The upper inner wall of the first mounting bracket 502 is fixedly connected to the first sealing block 503. The first sealing block 503 is inserted and fitted into the lower end of the discharge hopper 5. The coal screened by the screening hole 204 is collected from the lower end outlet of the discharge hopper 5 controlled by the first mounting bracket 502.

[0027] like Figure 2 As shown, the hot air blower 4 is provided with an air outlet pipe 401, which is connected to the screening cylinder 201 and is used to input hot air into the screening cylinder 201. The hot air moves in the screening cylinder 201 and enters the box 1 through the screening hole 204.

[0028] In use, this invention utilizes a hot air blower 4 to input hot air into the screening cylinder 201 through the air outlet pipe 401. The hot air moves from right to left within the screening cylinder. Simultaneously, the hot air enters the housing 1 through the screening holes 204 of the screening cylinder 201. Coal is introduced into the screening cylinder 201 through the feed pipe 202. The output end of the motor 301 drives the connecting shaft 302 to rotate, which in turn drives the spiral plate 303 to rotate within the screening cylinder 201. This causes the coal to move horizontally spirally from left to right within the screening cylinder 201. At this time, the hot air... The coal is dried and convected with the coal. The screening holes 204 screen the coal that moves freely during the spiral advance. The coal screened out by the screening holes 204 falls into the discharge hopper 5. The coal remaining in the screening cylinder 201 falls into the discharge pipe 203 under the drive of the spiral plate 303. The first mounting plate and the second mounting plate are removed by bolts. Then, the first sealing block 503 and the second sealing block 206 are respectively separated from the discharge hopper 5 and the discharge pipe 203. The coal that has been screened and adjusted is collected from the lower end of the discharge hopper 5 and the discharge pipe 203 respectively.

[0029] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A coal screening and moisture conditioning device, comprising a housing (1), characterized in that: It also includes a screening mechanism (2), a hot air blower (4), and a discharge hopper (5). The screening mechanism (2) is connected inside the housing (1). A mounting plate is fixed to the rear end of the housing (1). The hot air blower (4) is fixed to the mounting plate for inputting hot air flow to the housing (1) and the screening mechanism (2). The discharge hopper (5) is fixed to the lower end of the housing (1). The screening mechanism (2) includes a screening cylinder (201) and a drive assembly (3). The screening cylinder (201) is provided with a plurality of screening holes (204). The screening cylinder (201) is horizontally fixed inside the housing (1). A feed pipe (202) is fixedly connected to the upper side of one end of the screening cylinder (201) and extends out of the upper end of the housing (1). A discharge pipe (203) is fixedly connected to the lower side of the other end of the screening cylinder (201) and extends out of the lower end of the housing (1). The drive assembly (3) is connected inside the screening cylinder (201) and is used to drive the coal in the screening cylinder (201) to rotate and move forward.

2. The coal screening and moisture conditioning device according to claim 1, characterized in that: The box (1) is provided with a screening chamber (105), and the screening chamber (105) is provided with a first mounting groove (101) and a second mounting groove (103) on both sides. The screening cylinder (201) is horizontally arranged in the screening chamber (105), and the two ends of the screening cylinder (201) are respectively inserted and fixedly installed in the first mounting groove (101) and the second mounting groove (103).

3. The coal screening and moisture conditioning device according to claim 2, characterized in that: The lower end of the screening chamber (105) passes through the lower end of the box body (1) and is connected to the upper end of the discharge hopper (5). The bottom surface of the discharge hopper (5) is set as an inclined surface (501). The lower end outlet of the discharge hopper (5) is fixedly connected to a first mounting bracket (502) by bolts. The upper inner wall of the first mounting bracket (502) is fixedly connected to a first sealing block (503). The first sealing block (503) is inserted and fitted into the lower end of the discharge hopper (5).

4. A coal screening and moisture conditioning device according to claim 2 or 3, characterized in that: The upper end of the housing (1) is provided with a first opening (102) communicating with the first mounting groove (101), and the feed pipe (202) extends out from the first opening (102). The lower end of the housing (1) is provided with a second opening (104) communicating with the second mounting groove (103), and the discharge pipe (203) extends out from the second opening (104).

5. A coal screening and moisture conditioning device according to claim 4, characterized in that: The lower end of the discharge pipe (203) is fixedly installed with a second mounting bracket (205) by bolts. The upper inner wall of the second mounting bracket (205) is fixedly connected with a second sealing block (206), which is inserted into the lower end of the discharge pipe (203).

6. A coal screening and moisture conditioning device according to claim 2, characterized in that: The drive assembly (3) includes a motor (301) and a spiral plate (303). The motor (301) is fixed to the outside of the housing (1). The output end of the motor (301) is fixed to a connecting shaft (302) that rotates horizontally through the housing (1) and the screening cylinder (201). The spiral plate (303) is fixed to the connecting shaft (302) and rotates to fit the inner wall of the screening cylinder (201).

7. A coal screening and moisture conditioning device according to claim 6, characterized in that: The hot air blower (4) is provided with an air outlet pipe (401), which is connected to the screening cylinder (201).

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