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CN-224213033-U - Pulp backflow control device of hydropulper of paperboard machine

CN224213033UCN 224213033 UCN224213033 UCN 224213033UCN-224213033-U

Abstract

The utility model discloses a pulp backflow control device of a hydropulper of a paperboard machine, and relates to the technical field of pulping. The utility model provides a pulp backflow controlling means of board paper machine hydrapulper, including hydrapulper body and water pitcher, the bottom fixedly connected with of hydrapulper body arranges thick liquid return bend, the inside intercommunication of row thick liquid return bend and hydrapulper body, pipeline clearance structure is located the water pitcher, pipeline clearance structure includes the suction pump, delivery pipe and annular pipe, through the suction pump, the delivery pipe, the annular pipe, clear up the circulation clearance system that violently pipe and clearance standpipe constitute, when needs clearance, start the suction pump, make liquid high-speed flow in the pipeline, wash by force to the back flow inner wall, in time clear away impurity such as attached gluing thing, filler granule, printing ink residue, the accumulation of impurity is avoided in continuous circulation clearance, keep the pipeline internal diameter stable, reduce thick liquids circulation resistance, ensure that the pipeline is unblocked in the long-term use.

Inventors

  • CHEN CHUANG
  • ZENG XIAODAN
  • XI XIAOLI
  • ZHAO FENFANG

Assignees

  • 湖北城东再生资源科技发展有限公司

Dates

Publication Date
20260508
Application Date
20250507

Claims (6)

  1. 1. A pulp backflow control device of a hydropulper of a paperboard machine, comprising: The hydraulic pulping machine comprises a hydraulic pulping machine body (1) and a water tank (2), wherein a pulp discharge bent pipe (9) is fixedly connected to the bottom of the hydraulic pulping machine body (1), and the pulp discharge bent pipe (9) is communicated with the inside of the hydraulic pulping machine body (1); the pipeline cleaning structure is positioned on the water tank (2); The pipeline cleaning structure comprises a water suction pump (3), a water supply pipe (4) and an annular pipe (14), wherein the water suction pump (3) is fixedly arranged at the top of the water tank (2), the liquid suction end of the water suction pump (3) is communicated with the interior of the water tank (2), and the liquid discharge end of the water suction pump (3) is fixedly connected with the water supply pipe (4); Wherein, one end of the water supply pipe (4) far away from the water suction pump (3) is fixedly connected with an annular pipe (14), two screwing valves (15) are fixedly arranged on the annular pipe (14), and one end of the pulp discharge elbow pipe (9) far away from the hydropulper body (1) is fixedly provided with a pulp pump (8); Wherein, the pulp pumping end of the pulp pump (8) is communicated with the inside of the pulp discharging bent pipe (9), and the pulp discharging end of the pulp pump (8) is fixedly connected with a pulp discharging main pipe (11).
  2. 2. The pulp backflow control device of the hydropulper of the paperboard paper machine, which is characterized in that an electromagnetic control valve (6) is fixedly arranged on the outer surface of a pulp discharge main pipe (11), one end of the electromagnetic control valve (6) away from the pulp discharge main pipe (11) is fixedly connected with a backflow pipe (5), and one end of the backflow pipe (5) away from the electromagnetic control valve (6) is communicated with the inside of the hydropulper body (1); wherein, the surface of back flow (5) is last fixedly connected with clearance violently pipe (12) and clearance standpipe (13) respectively, and clearance violently pipe (12) and clearance standpipe (13) all communicate with the inside of back flow (5), and the one end that delivery pipe (4) were kept away from to annular pipe (14) is respectively with clearance violently pipe (12) and clearance standpipe (13) fixed connection.
  3. 3. The pulp backflow control device of the hydropulper of the paperboard paper machine, which is characterized in that a pulp concentration sensor (7) is fixedly arranged on the outer surface of the pulp discharge main pipe (11), and the detection end of the pulp concentration sensor (7) is positioned in the pulp discharge main pipe (11).
  4. 4. The pulp backflow control device of the hydropulper of the paperboard machine, which is characterized in that a control valve (10) is fixedly arranged on the outer surface of the pulp discharge bent pipe (9).
  5. 5. The pulp backflow control device of the hydropulper of the paperboard machine, which is characterized in that the top of the water tank (2) is fixedly connected with a water injection pipe (16), and the water injection pipe (16) is communicated with the inside of the water tank (2).
  6. 6. A pulp backflow control device of a hydropulper of a paperboard machine as claimed in claim 2, characterized in that the backflow pipe (5) is of an L-shaped structure.

Description

Pulp backflow control device of hydropulper of paperboard machine Technical Field The utility model relates to the technical field of pulping, in particular to a pulp backflow control device of a hydropulper of a paperboard machine. Background In the production process of a paperboard machine, the hydropulper is used as one of key equipment to bear the important task of crushing and fluffing waste paper or other paper pulp raw materials and preparing the waste paper or other paper pulp raw materials into pulp suitable for subsequent procedures, and in the operation process of the hydropulper, the pulp passes through a series of complex flowing processes including crushing, mixing, conveying and other links, and finally part of pulp can return to the pulper or other processing units through a return pipeline so as to realize recycling of the pulp and stable control of technological parameters. In the actual production process, raw materials used for producing the paperboard are complex, such as waste cartons, newspapers and the like, after being processed by a hydraulic pulper, the components of the paperboard are complex, besides fibers, the paperboard also contain impurities such as adhesives, filler particles, ink residues and the like, the impurities are extremely easy to adhere and deposit on the inner wall of a return pipe in the slurry return process, the impurities are continuously accumulated along with the time, so that the inner diameter of the pipeline is reduced, the flowing resistance of the paperboard is obviously increased, the normal operation of the hydraulic pulper is influenced, and the quality of the paperboard is reduced. Disclosure of utility model The utility model aims to at least solve one of the technical problems in the prior art, and provides a pulp backflow control device of a hydropulper, which can solve the problems that in the actual production process, raw materials used for producing the paperboard are complex, such as waste cartons, newspapers and the like, after the pulp is treated by the hydropulper, the pulp contains complex components, adhesive substances, filler particles, ink residues and other impurities besides fibers, the impurities are extremely easy to adhere and deposit on the inner wall of a backflow pipe in the pulp backflow process, and the impurities are accumulated continuously over time, so that the inner diameter of a pipeline is reduced, the flow resistance of the pulp is obviously increased, the normal operation of the hydropulper is influenced, and the quality of the pulp is reduced. In order to achieve the purpose, the utility model provides the following technical scheme that the pulp backflow control device of the hydropulper of the paperboard machine comprises the following components: The hydraulic pulping machine comprises a hydraulic pulping machine body and a water tank, wherein a pulp discharge bent pipe is fixedly connected to the bottom of the hydraulic pulping machine body and is communicated with the inside of the hydraulic pulping machine body; the pipeline cleaning structure is positioned on the water tank; pipeline clearance structure includes suction pump, delivery pipe and ring pipe, suction pump fixed mounting at the top of water pitcher, suction pump's liquid pumping end and the inside intercommunication of water pitcher, suction pump's flowing back end and delivery pipe fixed connection, the delivery pipe is kept away from the one end fixedly connected with ring pipe of suction pump, and fixed mounting has two screw valves on the ring pipe, and the one end fixed mounting that the hydraulic pulper body was kept away from to the pulp discharge return bend has the thick liquid pump, and the thick liquid end of taking out of thick liquid pump communicates with the inside of pulp discharge return bend, and the thick liquid end fixedly connected with of thick liquid pump is arranged to the thick liquid and is responsible for. Preferably, the electromagnetic control valve is fixedly installed on the outer surface of the pulp discharging main pipe, one end of the electromagnetic control valve, which is far away from the pulp discharging main pipe, is fixedly connected with the return pipe, one end of the return pipe, which is far away from the electromagnetic control valve, is communicated with the inner part of the hydropulper body, the outer surface of the return pipe is respectively and fixedly connected with the cleaning transverse pipe and the cleaning vertical pipe, the cleaning transverse pipe and the cleaning vertical pipe are respectively communicated with the inner part of the return pipe, and one end of the annular pipe, which is far away from the water supply pipe, is respectively and fixedly connected with the cleaning transverse pipe and the cleaning vertical pipe. Preferably, a slurry concentration sensor is fixedly arranged on the outer surface of the main slurry discharging pipe, and the detection end of the slurry concen