Purifying device for coal pitch manufacturing

Abstract

The utility model relates to the field of coal pitch manufacturing, in particular to a purification device for coal pitch manufacturing. The technical problems that when a traditional device is used for extraction, an extracting agent and coal pitch are not fully mixed, and impurities and the extracting agent are inconvenient to separate are solved. A purification device for coal pitch manufacturing comprises a bottom frame, two bearing frames are fixedly connected to the top of the bottom frame, a mixing barrel is fixedly connected between the two bearing frames, and a feeding hopper is fixedly connected to one side of the mixing barrel. By starting the spraying frame and the motor, the spraying frame can spray an extracting agent, the motor drives the rotating shaft to rotate, the rotating shaft drives the spiral conveying frame to rotate, the coal pitch raw material is stirred, and the coal pitch raw material and the extracting agent are pushed towards the direction close to the filter cartridge, so that the coal pitch raw material is in full contact with the extracting agent; and the coal pitch in the coal pitch raw material is fully extracted by the extracting agent.

Description

Technical Field

[0001] The utility model relates to the field of coal tar pitch manufacturing, in particular to a purification device for coal tar pitch manufacturing. Background Art

[0002] During the processing of coal tar, the residue after distillation to remove the liquid fraction is called coal tar pitch. Due to its high yield, extracting asphalt from coal has become a major method for artificial asphalt. However, coal tar pitch contains a large amount of impurities, such as metal impurities such as iron and zinc, and solid ash impurities. Therefore, coal tar pitch needs to be purified. The existing technology usually uses organic extraction liquid to purify coal tar pitch. By utilizing the similar miscible property of asphalt's organic matter, an organic extractant (such as carbon tetrachloride) is used to separate the asphalt from the impurities, and then the extractant and the asphalt are separated by distillation to obtain high-purity coal tar pitch.

[0003] When traditional devices are used for extraction, due to the high viscosity of coal tar, it is not convenient to fully mix the coal tar and the extractant, resulting in insufficient reaction between the mixed coal tar and the extractant, causing a low coal tar extraction rate in the coal tar raw material, and there will be residual extractant in the impurities after extraction, which makes it difficult to separate the impurities and the extractant. Utility Model Content

[0004] In order to overcome the shortcomings of traditional devices that the extractant and coal tar are not mixed sufficiently during extraction and it is not convenient to separate impurities and the extractant, the utility model provides a purification device for coal tar manufacturing that can fully mix the extractant and coal tar and reduce the residue of the extractant, thereby improving the extraction degree of coal tar and the recovery rate of the extractant.

[0005] The technical implementation scheme of the utility model is: a purification device for coal tar manufacturing, including a base frame, two load-bearing frames are fixedly connected to the top of the base frame, a mixing cylinder is fixedly connected between the two load-bearing frames, a feed hopper is fixedly connected to one side of the mixing cylinder, the feed hopper is communicated with the mixing cylinder, a spray frame is provided on the upper part of the mixing cylinder, a stirring assembly is connected to the feed hopper, a filter press assembly is connected to the mixing cylinder, the coal tar is stirred by the stirring assembly, the coal tar is fully and evenly contacted with the extract sprayed from the spray frame and then sent to the filter press assembly, and the filter press assembly fully separates the coal tar and the extract.

[0006] More preferably, the stirring assembly includes a rotating shaft, the rotating shaft is rotatably connected to the feed hopper, a motor is provided on the outer wall of the feed hopper, the output shaft of the motor is fixedly connected to the rotating shaft, a spiral conveying frame is fixedly connected to the rotating shaft, the spiral conveying frame is located in the mixing barrel, and the spiral conveying frame is located below the spray frame.

[0007] More preferably, the pressure filtration assembly includes a filter cylinder. The filter cylinder is fixedly connected to the side of the mixing cylinder away from the feed hopper. The filter cylinder communicates with the mixing cylinder and is rotatably connected to the rotating shaft. A liquid outlet is opened at the bottom of the filter cylinder, and a sealing cover is snap-fitted on the filter cylinder.

[0008] More preferably, the pressure filtration assembly further includes a filter screen. The filter screen is fixedly connected to the lower part of the inner wall of the filter cylinder. A fixing frame is fixedly connected to the inner wall of the filter cylinder, and a threaded rod is fixedly connected to the bottom of the fixing frame. The lower end of the threaded rod is fixedly connected to the filter screen.

[0009] More preferably, the pressure filtration assembly further includes a hydraulic push rod. The hydraulic push rod is fixedly connected to the upper part of the inner wall of the filter cylinder. A pressing plate is threadedly connected to the threaded rod. A through hole is opened on the pressing plate, and a clamping ring is rotatably connected to the pressing plate. The clamping ring is fixedly connected to the telescopic rod of the hydraulic push rod, and a baffle is fixedly connected to the clamping ring. The baffle contacts the top of the pressing plate.

[0010] Compared with the prior art, the present utility model has the following advantages: 1. By starting the spraying frame and the motor, the spraying frame sprays the extracting agent. The output shaft of the motor rotates to drive the rotating shaft to rotate, and the rotating shaft rotates to drive the spiral conveyor to rotate. The spiral conveyor rotates to stir the coal tar pitch raw material and push the coal tar pitch raw material and the extracting agent towards the filter cylinder, so that the coal tar pitch raw material and the extracting agent are fully contacted, and the extracting agent fully extracts the coal tar pitch in the coal tar pitch raw material.

[0011] 2. By the staff starting the telescopic rod of the hydraulic push rod to extend, the extension of the telescopic rod of the hydraulic push rod drives the clamping ring to move downward, and the downward movement of the clamping ring drives the pressing plate to move downward. Under the action of the thread, the pressing plate will rotate. The continuous downward movement of the pressing plate squeezes the mixture of the coal tar pitch raw material and the extracting agent on the filter screen, squeezes out the extracting agent in the mixture completely, reduces the residue of the extracting agent in the mixture, and improves the extraction degree of the coal tar pitch and the recovery rate of the extracting agent. Description of the Drawings

[0012] Figure 1 It is a three-dimensional structure diagram of the present utility model.

[0013] Figure 2 It is a sectional three-dimensional structure diagram of the present utility model.

[0014] Figure 3 It is the first sectional three-dimensional structure diagram of the present utility model.

[0015] Figure 4 It is a three-dimensional structure diagram of the pressing plate of the present utility model.

[0016] Figure 5This is the second cross-sectional three-dimensional structural schematic diagram of the present utility model.

[0017] The markings of each component in the attached drawings are as follows: 1. chassis, 2. load-bearing frame, 3. mixing cylinder, 4. feed hopper, 5. spray rack, 6. rotating shaft, 7. screw conveyor rack, 8. motor, 9. filter cylinder, 91. sealing cover, 10. filter screen, 11. fixing frame, 12. threaded rod, 13. hydraulic push rod, 14. pressing plate, 15. snap ring, 16. baffle plate. Specific embodiments

[0018] First of all, it should be pointed out that in different described embodiments, the same components are provided with the same reference numerals or the same component names. Among them, the disclosure contained in the entire specification can be meaningfully transferred to the same components with the same reference numerals or the same component names. The positional descriptions selected in the specification, such as up, down, lateral, etc., also refer to the directly described and shown drawings and are meaningfully transferred to the new positions when the positions change.

[0019] Example 1: A purification device for manufacturing coal tar pitch, as Figures 1 - 5 shown, includes a chassis 1, two load-bearing frames 2 are fixedly connected to the top of the chassis 1, the chassis 1 is used to install the load-bearing frames 2, a mixing cylinder 3 is fixedly connected between the two load-bearing frames 2, the mixing cylinder 3 is used to mix coal tar pitch raw materials and extractants, a feed hopper 4 is fixedly connected to one side of the mixing cylinder 3, the feed hopper 4 is communicated with the mixing cylinder 3, a spray rack 5 is arranged on the upper part of the mixing cylinder 3, the spray rack 5 is used to spray extractants, a stirring assembly is connected to the feed hopper 4, a pressure filtration assembly is connected to the mixing cylinder 3, the coal tar pitch is stirred by the stirring assembly, and after the coal tar pitch is fully and evenly contacted with the extraction liquid sprayed by the spray rack 5, it is sent to the pressure filtration assembly, and the pressure filtration assembly fully separates the coal tar pitch from the extraction liquid.

[0020] The stirring assembly includes a rotating shaft 6, the rotating shaft 6 is rotatably connected to the feed hopper 4, a motor 8 is arranged on the outer wall of the feed hopper 4, the output shaft of the motor 8 is fixedly connected to the rotating shaft 6, the motor 8 is used to drive the rotating shaft 6, a screw conveyor rack 7 is fixedly connected to the rotating shaft 6, the screw conveyor rack 7 is located inside the mixing cylinder 3, the screw conveyor rack 7 is located below the spray rack 5, and the screw conveyor rack 7 is used to stir the coal tar pitch raw materials and extractants.

[0021] The pressure filtration assembly includes a filter cylinder 9, the filter cylinder 9 is fixedly connected to the side of the mixing cylinder 3 away from the feed hopper 4, the filter cylinder 9 is communicated with the mixing cylinder 3, the filter cylinder 9 is rotatably connected to the rotating shaft 6, a liquid outlet is opened at the bottom of the filter cylinder 9, and a sealing cover 91 is clamped on the filter cylinder 9.

[0022] The pressure filtration assembly further includes a filter screen 10. The lower part of the inner wall of the filter cylinder 9 is fixedly connected with the filter screen 10. The filter screen 10 is used to separate the extractant from which coal tar pitch has been extracted and the solid ash. A fixing frame 11 is fixedly connected to the inner wall of the filter cylinder 9. The bottom of the fixing frame 11 is fixedly connected with a threaded rod 12. The lower end of the threaded rod 12 is fixedly connected with the filter screen 10.

[0023] The pressure filtration assembly further includes a hydraulic push rod 13. The upper part of the inner wall of the filter cylinder 9 is fixedly connected with the hydraulic push rod 13. A pressing plate 14 is connected to the threaded rod 12 by threads. The hydraulic push rod 13 is used to drive the pressing plate 14 to move up and down. Through holes are formed in the pressing plate 14. A clamping ring 15 is rotatably connected to the pressing plate 14. The clamping ring 15 is fixedly connected with the telescopic rod of the hydraulic push rod 13. A baffle 16 is fixedly connected to the clamping ring 15. The baffle 16 contacts the top of the pressing plate 14.

[0024] Initially, the staff pours the coal tar pitch raw material into the mixing cylinder 3 from the feed hopper 4, and then starts the spraying rack 5 and the motor 8. The spraying rack 5 sprays the extractant. The output shaft of the motor 8 rotates to drive the rotating shaft 6 to rotate. The rotating shaft 6 rotates to drive the spiral conveying rack 7 to rotate. The spiral conveying rack 7 rotates to stir the coal tar pitch raw material and the extractant, and pushes the coal tar pitch raw material and the extractant towards the direction close to the filter cylinder 9, so that the coal tar pitch raw material and the extractant react fully, and the extractant fully extracts the coal tar pitch in the coal tar pitch raw material.

[0025] The spiral conveying rack 7 continues to rotate to push the coal tar pitch raw material and the extractant into the filter cylinder 9. The mixture of the coal tar pitch raw material and the extractant will fall downward onto the filter screen 10. The extractant from which coal tar pitch has been extracted will flow down through the holes of the filter screen 10 and be discharged from the liquid outlet at the bottom of the filter cylinder 9. The remaining solid ash will remain on the filter screen 10. Then the staff opens the sealing cover 91 and clears the solid ash on the filter screen 10, and then the staff closes the sealing cover 91, which is convenient for the next operation.

[0026] The mixture of coal tar pitch raw material and extractant will fall on the top of the pressing plate 14. The staff starts the telescopic rod of the hydraulic push rod 13 to extend. The extension of the telescopic rod of the hydraulic push rod 13 drives the clamping ring 15 to move downward. The downward movement of the clamping ring 15 drives the pressing plate 14 to move downward. Under the action of the thread of the threaded rod 12, the pressing plate 14 will rotate. When the pressing plate 14 rotates, the baffle 16 will block the mixture of coal tar pitch raw material and extractant on the pressing plate 14. When the through hole on the pressing plate 14 rotates below the baffle 16, under the action of gravity, the mixture of coal tar pitch raw material and extractant will fall downward from the through hole on the pressing plate 14 onto the filter screen 10. The continuous downward movement of the pressing plate 14 will squeeze the mixture of coal tar pitch raw material and extractant on the filter screen 10, completely squeeze out the extractant in the mixture, reduce the residue of the extractant in the mixture, and improve the extraction degree of coal tar pitch and the recovery rate of the extractant. After the pressure filtration is completed, the staff adjusts the telescopic rod of the hydraulic push rod 13 to contract. The contraction of the telescopic rod of the hydraulic push rod 13 drives the clamping ring 15 to reset upward. The upward reset of the clamping ring 15 drives the pressing plate 14 to reset upward. Under the action of the thread of the threaded rod 12, the pressing plate 14 will reset in the reverse direction.

[0027] Although the present disclosure has been described only with respect to a limited number of embodiments, those skilled in the art who benefit from the present disclosure will understand that various other embodiments can be designed without departing from the scope of the present invention. Therefore, the scope of the present invention should be limited only by the appended claims.

Claims

1. A purification device for producing coal tar pitch, characterized in that: The invention comprises a base frame (1), the top of which is fixedly connected to two load-bearing frames (2), a mixing drum (3) being fixedly connected between the two load-bearing frames (2), a feeding hopper (4) being fixedly connected to one side of the mixing drum (3), the feeding hopper (4) being in communication with the mixing drum (3), a spraying frame (5) being provided on the upper part of the mixing drum (3), a stirring assembly being connected to the feeding hopper (4), a filter press assembly being connected to the mixing drum (3), coal tar pitch being stirred by the stirring assembly, the coal tar pitch being sent into the filter press assembly after being in full and even contact with the extract sprayed from the spraying frame (5), and the filter press assembly being used to fully separate the coal tar pitch from the extract.

2. A purification device for producing coal tar pitch according to claim 1, characterized in that: The stirring assembly comprises a rotating shaft (6), the rotating shaft (6) is rotatably connected to the feed hopper (4), a motor (8) is provided on the outer wall of the feed hopper (4), an output shaft of the motor (8) is fixedly connected to the rotating shaft (6), a spiral conveying frame (7) is fixedly connected to the rotating shaft (6), the spiral conveying frame (7) is located in the mixing barrel (3), and the spiral conveying frame (7) is located below the spray frame (5).

3. A purification device for producing coal tar pitch according to claim 2, characterized in that: The filter press assembly comprises a filter cartridge (9), the filter cartridge (9) being fixedly connected to a side of the mixing cartridge (3) away from the feed hopper (4), the filter cartridge (9) being communicated with the mixing cartridge (3), the filter cartridge (9) being rotatably connected to the rotating shaft (6), a liquid outlet being provided at the bottom of the filter cartridge (9), and a sealing cover (91) being clamped on the filter cartridge (9).

4. A purification device for producing coal tar pitch according to claim 3, characterized in that: The filter press assembly further comprises a filter screen (10), the filter screen (10) being fixedly connected to the lower portion of the inner wall of the filter cartridge (9), a fixing frame (11) being fixedly connected to the inner wall of the filter cartridge (9), a threaded rod (12) being fixedly connected to the bottom of the fixing frame (11), and the lower end of the threaded rod (12) being fixedly connected to the filter screen (10).

5. A purification device for producing coal tar pitch according to claim 4, characterized in that: The filter press assembly further comprises a hydraulic push rod (13), the hydraulic push rod (13) being fixedly connected to the upper portion of the inner wall of the filter cylinder (9), a pressure plate (14) being threadedly connected to the threaded rod (12), a through hole being formed on the pressure plate (14), a retaining ring (15) being rotatably connected to the pressure plate (14), the retaining ring (15) being fixedly connected to the telescopic rod of the hydraulic push rod (13), a baffle plate (16) being fixedly connected to the retaining ring (15), and the baffle plate (16) being in contact with the top of the pressure plate (14).

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