Automatically-controlled medium distribution box for dense medium coal separation

Abstract

The utility model discloses an automatic control medium shunting box for dense medium coal separation, which comprises a shunting box assembly, the shunting box assembly comprises a shunting box body, the left side of the top of the shunting box body is fixedly connected with a buffer box, the top of the buffer box is communicated with a feeding pipe, and the right side of the shunting box body is communicated with a first shunting pipe; the surface of the first shunting pipe is fixedly connected with an electromagnetic valve, and the bottom of the inner cavity of the shunting box body is fixedly connected with a flow sensor. The utility model has the beneficial effects that through the cooperative use of the shunting box body in the shunting box assembly, the flow sensor and the observation window, a user can conveniently and quickly observe the condition in the shunting box body, and through the electrical connection of the flow sensor and the valve control assembly, the automatic regulation and control of the shunting box body can be realized, and the operation is convenient. By means of the valve control assembly, the flow dividing amount of the second flow dividing pipe can be easily controlled, and the flow dividing efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of coal preparation equipment, in particular to an automatically controlled medium diverter box for heavy medium coal preparation. Background Art

[0002] The media diversion in coal preparation plants is a crucial technology. Diversion refers to the diversion of part of the qualified media under the de-mediation screen to the magnetic separator for mixing with the dilute media for purification and recovery to remove the coal slime. The amount of this part of qualified media is referred to as the diversion flow. The diversion plays a key role in balancing the coal slime content.

[0003] 1. Improve the stability of the suspension: Through reasonable medium diversion, the slime content in the suspension can be effectively controlled and the stability of the suspension can be maintained. This helps prevent the continuous accumulation of slime during the washing process, maintain the fluidity of the suspension, and improve the washing effect.

[0004] 2. Optimize coal slime separation: The media diversion enables the washing system to respond more flexibly to the characteristics of different raw materials, which helps to optimize the coal slime separation effect. By adjusting the diversion flow according to actual conditions, the system can more accurately control the coal slime content in the suspension and improve the product quality.

[0005] 3. Reduce the loss of fine particles: Appropriate media diversion helps to reduce the loss of fine particles with coal slime. By controlling the coal slime content, the loss of fine particles can be reduced, the washing efficiency can be improved, and the product quality can be improved.

[0006] 4. Reduce system medium consumption: The rational use of medium diversion can reduce the system medium consumption. By removing excess coal slime, it not only reduces the burden on the washing equipment, but also reduces the consumption of energy and water resources, making the washing system more economical and efficient.

[0007] 5. Achieve washing balance: Medium diversion can help achieve coal slime balance during the washing process. By adjusting the diversion flow, the coal slime in the qualified medium can be maintained within an appropriate range, thereby ensuring that the three products of product, medium and water in the entire washing system are in a balanced state.

[0008] In general, medium diversion is crucial to balancing the slime content. It not only helps to improve the stability of the suspension and the washing effect, but also reduces the medium consumption of the system, providing strong support for the efficient operation of the coal preparation plant.

[0009] However, the medium diverter box for heavy medium coal preparation in the prior art has the following problems:

[0010] 1. The old diversion boxes used in existing coal preparation plants cannot timely observe whether there is diversion and blockage.

[0011] 2. When adjusting the flow rate of the traditional box-type diverter box, the existing valve control components cannot be used in conjunction with the flow sensor, and the flow rate cannot be quickly and accurately controlled. In addition, it is determined by experience during production, which lacks scientificity and accuracy, resulting in unreasonable medium flow rate and easily increasing system medium consumption.

[0012] 3. The mechanical structure of the traditional valve control component cannot achieve fast and accurate control of the diversion volume when used in the diversion box. There are delays and ambiguity, which can easily cause inappropriate medium diversion and affect production indicators.

[0013] 4. Most of the traditional media diversion boxes do not have stirring devices inside. After production stops, the internal media will be separated into water and media due to density, and the media will settle to the bottom, causing the media to clump. Utility Model Content

[0014] The purpose of the utility model is to provide an automatically controlled medium diverter box for heavy medium coal preparation. Through the coordinated use of the diverter box body in the diverter box assembly, the flow sensor and the observation window, it is convenient for the user to quickly observe the situation inside the diverter box body. Through the electrical connection of the flow sensor and the valve control assembly, the automatic adjustment and control of the diverter box body can be realized. The flow sensor can monitor the flow rate, density and other parameters of the medium and transmit the data to the control system. The control system adjusts the diverter device of the diverter box according to the preset parameters and algorithms, and controls the valve assembly to achieve the best separation effect.

[0015] In view of the deficiencies in the prior art, the medium diversion box for heavy medium coal preparation designed by the utility model innovates on the diversion control component through a specific mechanical structure, thereby solving the problem that most of the existing medium diversion boxes for heavy medium coal preparation cannot accurately and quickly control the diversion. It also solves the problems of some old medium diversion boxes in existing coal preparation plants, such as no observation window, no flow sensor, and only relying on subsequent processes to manually adjust the flow, and no stirring device, which may easily cause the medium and water to be stratified or even agglomerated due to density when the machine is restarted after production is stopped.

[0016] In order to realize the above functions, the utility model designs an automatically controlled medium diverter box for heavy medium coal preparation, comprising: a diverter box assembly 1 and a valve control assembly 2; the diverter box assembly 1 comprises a diverter box body 101, a buffer box 102 is fixedly connected to the left side of the top of the diverter box body 101, and the top of the diverter box body 101 is connected to the bottom of the buffer box 102, a feed pipe 103 is connected to the top of the buffer box 102, a first diverter pipe 104 is connected to the right side of the diverter box body 101, a solenoid valve 105 is fixedly connected to the surface of the first diverter pipe 104, a flow sensor 106 is fixedly connected to the bottom of the inner cavity of the diverter box body 101, a second diverter pipe 107 is connected to the bottom of the diverter box 101, a slot 108 is provided on the front side of the second diverter pipe 107, the slot 108 is connected to the inner cavity of the second diverter pipe 107, and an observation window 109 is provided on the front side of the diverter box body 101;

[0017] The valve control assembly 2 is located at the bottom of the diverter box assembly 1, and includes a limit plate 201. The top of the limit plate 201 is fixedly connected to the bottom of the diverter box body 101. The front side of the limit plate 201 is fixedly connected to an electric push rod 202. The left side of the electric push rod 202 is fixedly connected to a first tooth plate 203. The left side of the first tooth plate 203 is meshed with a gear plate 204. The top and bottom of the gear plate 204 are fixedly connected to a connecting frame 205 through a rotating shaft. The top of the connecting frame 205 is fixedly connected to the bottom of the diverter box body 101, and the left side of the gear plate 204 is meshed with a second tooth plate 206. The left side of the second tooth plate 206 is fixedly connected to a connecting plate 207. The left side of the connecting plate 207 is fixedly connected to a clamping plate 208, and the clamping plate 208 corresponds to the slot 108. Both sides of the clamping plate 208 are movably connected to the slot 108.

[0018] As a preferred technical solution of the present utility model: the top and the bottom of the connecting plate 207 are fixedly connected with a reinforcing plate 209 , and the right side of the reinforcing plate 209 is fixedly connected to the second tooth plate 206 .

[0019] As a preferred technical solution of the utility model: the left side of the card plate 208 is fixedly connected to a sliding plate 210, the inner cavity of the sliding plate 210 is slidably connected to a sliding rod 211, the front and rear sides of the sliding rod 211 are fixedly connected to a positioning plate 212, the top of the positioning plate 212 is fixedly connected to the bottom of the diversion box 101, and the sliding plate 210 moves radially on the sliding rod 211 with the movement of the card plate 208.

[0020] As a preferred technical solution of the present utility model: sealing rings 3 are provided at the top and the bottom of the inner cavity of the second shunt pipe 107, and the material of the sealing rings 3 is rubber.

[0021] As a preferred technical solution of the present utility model: the left side of the diverter box 101 is fixedly connected to a positioning frame 4, the left side of the positioning frame 4 is fixedly connected to a motor 5, the top of the output end of the motor 5 is fixedly connected to a first bevel gear 6, the right side of the first bevel gear 6 is meshedly connected to a second gear 7, the right side of the second gear 7 penetrates into the inner cavity of the diverter box 101 and is fixedly connected to a transmission rod 8, and the surface of the transmission rod 8 is fixedly connected to a stirring rod 9 to drive the surface stirring support rod to rotate.

[0022] As a preferred technical solution of the utility model: the front side and the rear side of the motor 5 are both fixedly connected with a reinforcing plate 10 , and the right side of the reinforcing plate 10 is fixedly connected to the positioning frame 4 .

[0023] As a preferred technical solution of the present utility model: the right side of the transmission rod 8 is fixedly connected with a bearing seat 11 , and the right side of the bearing seat 11 is fixedly connected to the inner wall of the diverter box 101 .

[0024] Beneficial effects: Compared with the prior art, the advantages of the utility model include:

[0025] The utility model is designed to realize an automatically controlled medium diverter box for heavy medium coal preparation. Through the coordinated use of the diverter box body, the flow sensor and the observation window in the diverter box assembly, the user can quickly observe the situation inside the diverter box. The flow sensor is electrically connected to the valve control assembly to realize automatic adjustment and control of the diverter box body. Through the valve control assembly, the diverter flow rate of the second diverter pipe can be easily controlled to improve the diverter efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a stereoscopic diagram of an automatically controlled medium diverter box for heavy medium coal separation provided according to an embodiment of the utility model;

[0027] Figure 2 It is a schematic diagram of the cross-sectional structure of the diversion box provided according to an embodiment of the utility model;

[0028] Figure 3 It is a schematic diagram of the structure of a valve control assembly provided according to an embodiment of the utility model;

[0029] Figure 4 It is a schematic diagram of the motor structure provided according to an embodiment of the utility model;

[0030] In the figure: 1. diverter box assembly; 101. diverter box body; 102. buffer box; 103. feed pipe; 104. first diverter pipe; 105. solenoid valve; 106. flow sensor; 107. second diverter pipe; 108. slot; 109. observation window; 2. valve control assembly; 201. limit plate; 202. electric push rod; 203. first tooth plate; 204. gear plate; 205. connecting frame; 206. second tooth plate; 207. connecting plate; 208. clamping plate; 209. reinforcement plate; 210. sliding plate; 211. sliding rod; 212. positioning plate; 3. sealing ring; 4. positioning frame; 5. motor; 6. first bevel gear; 7. second gear; 8. transmission rod; 9. stirring rod; 10. reinforcement plate; 11. bearing seat. DETAILED DESCRIPTION

[0031] The utility model is further described below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and cannot be used to limit the protection scope of the utility model.

[0032] The utility model provides an automatic controlled medium diversion box for heavy medium coal separation, referring to Figure 1 , Figure 2 , comprising: a shunt box assembly 1 and a valve control assembly 2; the shunt box assembly 1 comprises a shunt box body 101, a buffer box 102 is fixedly connected to the left side of the top of the shunt box body 101, and the top of the shunt box body 101 is connected to the bottom of the buffer box 102, a feed pipe 103 is connected to the top of the buffer box 102, a first shunt pipe 104 is connected to the right side of the shunt box body 101, a solenoid valve 105 is fixedly connected to the surface of the first shunt pipe 104, a flow sensor 106 is fixedly connected to the bottom of the inner cavity of the shunt box body 101, a second shunt pipe 107 is connected to the bottom of the shunt box 101, a slot 108 is provided on the front side of the second shunt pipe 107, the slot 108 is connected to the inner cavity of the second shunt pipe 107, and an observation window 109 is provided on the front side of the shunt box body 101;

[0033] The valve control assembly 2 is located at the bottom of the diverter box assembly 1. Figure 3, including a limit plate 201, the top of the limit plate 201 is fixedly connected to the bottom of the diversion box 101, the front side of the limit plate 201 is fixedly connected to an electric push rod 202, the left side of the electric push rod 202 is fixedly connected to a first tooth plate 203, the left side of the first tooth plate 203 is meshedly connected to a gear plate 204, the top and bottom of the gear plate 204 are fixedly connected to a connecting frame 205 through a rotating shaft, the top of the connecting frame 205 is fixedly connected to the bottom of the diversion box 101, the left side of the gear plate 204 is meshedly connected to a second tooth plate 206, the left side of the second tooth plate 206 is fixedly connected to a connecting plate 207, the left side of the connecting plate 207 is fixedly connected to a clamping plate 208, the clamping plate 208 corresponds to the slot 108, and both sides of the clamping plate 208 are movably connected to the slot 108.

[0034] By using the diverter box 101, the flow sensor 106 and the observation window 109 in the diverter box assembly 1, the user can quickly view the situation in the diverter box 101. By electrically connecting the flow sensor 106 to the valve control assembly 2, automatic adjustment and control of the diverter box 101 can be achieved. Through the valve control assembly 2, the diversion flow rate of the second diverter pipe 107 can be easily controlled to improve the diversion efficiency.

[0035] In one embodiment, referring to Figure 3 The top and bottom of the connecting plate 207 are fixedly connected with a reinforcing plate 209, and the right side of the reinforcing plate 209 is fixedly connected to the second tooth plate 206. The fixed connection between the reinforcing plate 209 and the second tooth plate 206 plays a role in reinforcing the connecting plate 207.

[0036] The left side of the card plate 208 is fixedly connected with a sliding plate 210, the inner cavity of the sliding plate 210 is slidably connected with a sliding rod 211, the front and rear sides of the sliding rod 211 are fixedly connected with positioning plates 212, the top of the positioning plate 212 is fixedly connected to the bottom of the diversion box 101, and the sliding plate 210 moves radially on the sliding rod 211 with the movement of the card plate 208. The sliding connection between the sliding plate 210 and the sliding rod 211 plays a role in assisting the movement of the card plate 208.

[0037] The top and bottom of the inner cavity of the second shunt pipe 107 are both provided with sealing rings 3 , and the sealing ring 3 is made of rubber. Because the sealing ring 3 is made of rubber, it plays the role of a sealing clamping plate 208 .

[0038] In one embodiment, referring to Figure 4The left side of the diversion box 101 is fixedly connected with a positioning frame 4, the left side of the positioning frame 4 is fixedly connected with a motor 5, the top of the output end of the motor 5 is fixedly connected with a first bevel gear 6, the right side of the first bevel gear 6 is meshed with a second gear 7, the right side of the second gear 7 penetrates into the inner cavity of the diversion box 101 and is fixedly connected with a transmission rod 8, and the surface of the transmission rod 8 is fixedly connected with a stirring rod 9 to drive the surface stirring support rod to rotate.

[0039] The working process of the structure described in this embodiment is as follows:

[0040] First, turn on the motor 5, and drive the first bevel gear 6 to rotate through the output end of the motor 5. When the first bevel gear 6 rotates, it engages with the second gear 7 to rotate. When the second gear 7 rotates, it drives the transmission rod 8 to rotate. When the transmission rod 8 rotates, it drives the stirring rod 9 to rotate, thereby diverting the flow in the diversion box 101, which can improve the diversion accuracy, reduce the system medium consumption, and break up the block medium due to the shear force.

[0041] The front and rear sides of the motor 5 are fixedly connected with a reinforcing plate 10, and the right side of the reinforcing plate 10 is fixedly connected to the positioning frame 4. The fixed connection between the reinforcing plate 10 and the positioning frame 4 plays a role in reinforcing the motor 5.

[0042] The right side of the transmission rod 8 is fixedly connected with a bearing seat 11, and the right side of the bearing seat 11 is fixedly connected to the inner wall of the diverter housing 101. The fixed connection between the bearing seat 11 and the diverter housing 101 plays a role in assisting the rotation of the transmission rod 8.

[0043] The working principle of the utility model is: the flow sensor 106 in the shunt box 101 is in the open state, and the flow sensor 106 is electrically connected to the electric push rod 202. When the flow sensor 106 detects that the medium in the inner cavity of the shunt box 101 is small, the electric push rod 202 will drive the first tooth plate 203 to engage the gear plate 204 to rotate, and the gear plate 204 rotates to engage the second tooth plate 206 and the connecting plate 207 to move. At this time, the connecting plate 207 drives the card plate 208 to insert inward, thereby reducing or even closing The second shunt pipe 107 is closed to reduce the flow of the medium. When the flow sensor 106 detects that the medium in the shunt box 101 is large, the electric push rod 202 will retract and drive the first tooth plate 203 to engage the gear plate 204 to rotate, and the gear plate 204 rotates to engage the second tooth plate 206 and the connecting plate 207 to move. At this time, the connecting plate 207 drives the card plate 208 to move outward, and when the card plate 208 moves, it drives the sliding plate 210 to assist in moving on the surface of the sliding rod 211, so that the second shunt pipe 107 is opened to achieve shunt. At the same time as the work, the motor 5 is turned on, and the first bevel gear 6 is driven to rotate through the output end of the motor 5. When the first bevel gear 6 rotates, it engages the second gear 7 to rotate, and when the second gear 7 rotates, it drives the transmission rod 8 to rotate. When the transmission rod 8 rotates, it drives the stirring rod 9 to rotate, thereby driving the 6 stirring rods 10 on the surface to rotate, so as to stir the shunt box 101, which can prevent the occurrence of medium agglomeration and achieve stable medium shunt.

[0044] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in this field without departing from the purpose of the present invention.

Claims

1. An automatically controlled medium diverter box for heavy medium coal preparation, characterized in that: include: A flow diverter box assembly (1) and a valve control assembly (2); the flow diverter box assembly (1) comprises a flow diverter box body (101), the left side of the top of the flow diverter box body (101) is fixedly connected to a buffer box (102), the top of the flow diverter box body (101) and the bottom of the buffer box (102) are connected to each other, the top of the buffer box (102) is connected to a feed pipe (103), the right side of the flow diverter box body (101) is connected to a first flow diverter pipe (104), and the first flow diverter pipe (104) is connected to the first flow diverter pipe (105). A solenoid valve (105) is fixedly connected to the surface of the flow tube (104); a flow sensor (106) is fixedly connected to the bottom of the inner cavity of the flow diversion box (101); the bottom of the flow diversion box (101) is connected to a second flow diversion tube (107); a slot (108) is provided on the front side of the second flow diversion tube (107); the slot (108) is connected to the inner cavity of the second flow diversion tube (107); and an observation window (109) is provided on the front side of the flow diversion box (101); The valve control assembly (2) is located at the bottom of the diverter box assembly (1), and comprises a limit plate (201), the top of the limit plate (201) is fixedly connected to the bottom of the diverter box body (101), the front side of the limit plate (201) is fixedly connected to an electric push rod (202), the left side of the electric push rod (202) is fixedly connected to a first tooth plate (203), the left side of the first tooth plate (203) is meshedly connected to a gear plate (204), and the top and bottom of the gear plate (204) are both connected by a rotating shaft. A connecting frame (205) is fixedly connected, the top of the connecting frame (205) is fixedly connected to the bottom of the diversion box (101), the left side of the gear plate (204) is meshingly connected to a second tooth plate (206), the left side of the second tooth plate (206) is fixedly connected to a connecting plate (207), the left side of the connecting plate (207) is fixedly connected to a clamping plate (208), the clamping plate (208) corresponds to the slot (108), and both sides of the clamping plate (208) are movably connected to the slot (108).

2. The automatic controlled medium diversion box for heavy medium coal separation according to claim 1 is characterized in that: The top and bottom of the connection plate (207) are both fixedly connected to a reinforcement plate (209), and the right side of the reinforcement plate (209) is fixedly connected to the second tooth plate (206).

3. The automatic controlled medium diversion box for heavy medium coal separation according to claim 1, characterized in that: A sliding plate (210) is fixedly connected to the left side of the card plate (208), a sliding rod (211) is slidably connected to the inner cavity of the sliding plate (210), a positioning plate (212) is fixedly connected to the front and rear sides of the sliding rod (211), the top of the positioning plate (212) is fixedly connected to the bottom of the diversion box (101), and the sliding plate (210) moves radially on the sliding rod (211) as the card plate (208) moves.

4. The medium diversion box for heavy medium coal separation according to claim 1 is characterized in that: Sealing rings (3) are provided at the top and bottom of the inner cavity of the second diversion pipe (107), and the sealing rings (3) are made of rubber.

5. The automatic controlled medium diversion box for heavy medium coal separation according to claim 1, characterized in that: The left side of the diversion box (101) is fixedly connected to a positioning frame (4), the left side of the positioning frame (4) is fixedly connected to a motor (5), the top of the output end of the motor (5) is fixedly connected to a first bevel gear (6), the right side of the first bevel gear (6) is meshingly connected to a second gear (7), the right side of the second gear (7) penetrates into the inner cavity of the diversion box (101) and is fixedly connected to a transmission rod (8), and the surface of the transmission rod (8) is fixedly connected to a stirring rod (9) so as to drive the surface stirring support rod to rotate.

6. The automatic controlled medium diversion box for heavy medium coal separation according to claim 5, characterized in that: The front and rear sides of the motor (5) are both fixedly connected with a reinforcing plate (10), and the right side of the reinforcing plate (10) is fixedly connected to the positioning frame (4).

7. The automatic controlled medium diversion box for heavy medium coal separation according to claim 5, characterized in that: The right side of the transmission rod (8) is fixedly connected to a bearing seat (11), and the right side of the bearing seat (11) is fixedly connected to the inner wall of the diversion box (101).

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