CN210313944U

CN210313944U - Papermaking sludge recycling device

Info

Publication number: CN210313944U
Application number: CN201920796046.7U
Authority: CN
Inventors: 高科伟
Original assignee: Dongguan Jinzhou Paper Industry Co ltd
Current assignee: Dongguan Jinzhou Paper Industry Co ltd
Priority date: 2019-05-29
Filing date: 2019-05-29
Publication date: 2020-04-14
Anticipated expiration: 2029-05-29

Abstract

The utility model relates to the technical field of papermaking energy conservation and emission reduction, in particular to a papermaking sludge recycling device, which comprises a sludge storage tank, wherein the outlet end of the sludge storage tank is communicated with a sludge conveying pump, the outlet end of the sludge conveying pump is communicated with a sludge conditioning tank, the outlet end of the sludge conditioning tank is communicated with a first sludge adding pump, the outlet end of the first sludge adding pump is communicated with the inlet end of a sand remover, the outlet end of the sand remover is communicated with a pressure screen, the outlet end of the pressure screen is communicated with a ground tank, the outlet end of the ground tank is communicated with a second sludge adding pump, the outlet end of the second sludge adding pump is communicated with a reaction tank through a pipeline, a branch pipeline is arranged on and communicated with the pipeline of the reaction tank, the branch pipeline is communicated with a medicine feeding pump, and; the sludge is recycled after being treated and added into the pulp to be made into paper, so that the yield of waste paper pulping is improved, the consumption of waste paper can be reduced, the effects of energy conservation and emission reduction are achieved, the recycling of the sludge is realized, and the normal operation of a paper machine can be ensured.

Description

Papermaking sludge recycling device

Technical Field

The utility model relates to a papermaking energy saving and emission reduction technical field, more specifically say, relate to a papermaking sludge recycling device.

Background

At present, domestic companies for producing high-strength corrugated base paper basically use domestic waste paper as main production raw materials, when waste water generated in the pulping and papermaking process is discharged into sewage, a large amount of sludge is generated in a primary sedimentation tank due to the fact that the waste water contains a large amount of fine fibers, fillers and the like, the sludge amount of the primary sedimentation tank treated every day by an environmental protection department is very large, the sludge main components of the primary sedimentation tank sludge are the fine fibers and the fillers, the balance of a papermaking wet part system is easily influenced due to the fact that sludge with strong anions is contained, and the fine fibers and the fillers in the sludge are directly used to easily block a paper machine forming net and a piece of felt.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model lies in that, to the above-mentioned defect of prior art, a paper sludge recycling device is provided.

The utility model provides a technical scheme that its technical problem adopted is:

the utility model provides a papermaking sludge recycling device, including the mud storage tank, mud storage tank exit end intercommunication mud pump, mud pump exit end intercommunication mud conditioning tank, mud conditioning tank exit end intercommunication is first with the dredge pump, first mud pump exit end intercommunication desander entrance point, desander exit end intercommunication pressure screen, the pressure screen exit end intercommunication grinds the back pond, grind back pond exit end intercommunication second and add the dredge pump, the second adds the dredge pump exit end and passes through pipeline intercommunication retort, it has the lateral pipeline to set up the parallel connection on the pipeline of second mud pump intercommunication retort, the lateral pipeline communicates in the medicine pump that delivers medicine, the medicine pump that delivers medicine communicates in the medicine storage tank exit end.

Further, the desander is a conical desander.

Furthermore, the top of the medicine storage tank is in threaded connection with a tank cover, a motor is fixed on the tank cover, a stirring shaft is fixed on an output shaft of the motor, and strip-shaped stirring blades and fan-shaped stirring blades are sequentially arranged on the stirring shaft from top to bottom at intervals.

Furthermore, the inner bottom surface of the medicine storage tank is an inclined plane with a certain angle, and one side of the inner bottom surface of the medicine storage tank, which is far away from the outlet end, is higher than one side of the inner bottom surface of the medicine storage tank, which is close to the outlet end.

Furthermore, the top of the medicine storage tank is provided with a funnel in threaded connection on one side of the tank cover, and a filter screen is arranged in the funnel.

The beneficial effects of the utility model reside in that: the utility model discloses a handle the back retrieval and utilization to mud, add mud in the thick liquids that will make into paper, not only improved the yield of waste paper slurrying, can also reduce the consumption of waste paper, reach energy saving and emission reduction's effect, realized the retrieval and utilization again of mud promptly simultaneously, can also guarantee that the paper machine operation is normal.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the present invention will be further described with reference to the accompanying drawings and embodiments, wherein the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained without inventive efforts according to the drawings:

FIG. 1 is a schematic structural view of a paper sludge recycling device provided by the present invention;

fig. 2 is a schematic view of the structure of the chemical storage tank of the paper mill sludge recycling device provided by the utility model.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, a clear and complete description will be given below with reference to the technical solutions of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, belong to the scope of protection of the present invention.

Example one

As shown in figure 1, a papermaking sludge recycling device comprises a sludge storage tank 10, wherein the outlet end of the sludge storage tank 10 is communicated with a sludge conveying pump 11, the outlet end of the sludge conveying pump 11 is communicated with a sludge conditioning tank 20, the outlet end of the sludge conditioning tank 20 is communicated with a first sludge adding pump 21, the outlet end of the first sludge adding pump 21 is communicated with the inlet end of a sand remover 30, the outlet end of the sand remover 30 is communicated with a pressure screen 40, the outlet end of the pressure screen 40 is communicated with a ground tank 50, the outlet end of the ground tank 50 is communicated with a second sludge adding pump 51, the outlet end of the second sludge adding pump 51 is communicated with a reaction tank 60 through a pipeline, a branch pipeline is arranged on the pipeline of the reaction tank 60 and communicated with the branch pipeline, the branch pipeline is communicated with a medicine feeding pump 77, the medicine feeding pump 77 is communicated with the outlet end of a medicine storage tank 70, the sand remover 30 is a conical sand remover, the sieve plate of the pressure screen 40 is a slotted screen, the screen gap of the slotted, the outlet end of the reaction tank 60 is communicated with an external slurry inlet end (not shown).

The utility model discloses put mud in mud storage tank 10, carry out the preliminary treatment to mud through mud conditioning tank 20, detach the grit in the mud through desander 30 again, pass through after 40 further filters of pressure screen, introduce and grind back pond 50, the second adds mud pump 51 and will grind the mud in back pond 50 and introduce retort 60, and draw forth retort 60 through the mud backfill agent liquid medicine of medicine delivery pump 77 in with medicine storage tank 70, make mud backfill agent react with mud, mud just changeability is the cation in the certain time, and form flocculent thick liquids, introduce paper pulp with flocculent thick liquids again, the retrieval and utilization of mud has been realized promptly.

Example two

In the second embodiment of the present invention, based on the first embodiment, as shown in fig. 2, a tank cover 71 is screwed on the top of the medicine storage tank 70, a motor 72 is fixed on the tank cover 71, the motor 72 is electrically connected to an external control device, the working interval time of the motor 72 is preset in advance, if the working interval time is set at a certain interval, the motor 72 works for a certain time, a stirring shaft is fixed on an output shaft of the motor 72, strip-shaped stirring blades 73 and fan-shaped stirring blades 74 are sequentially arranged on the stirring shaft from top to bottom at intervals, and the stirring effect of the stirring shaft can be improved by the stirring blades of two different; the inner bottom surface of the medicine storage tank 70 is an inclined plane with a certain angle, and one side of the inner bottom surface of the medicine storage tank 70, which is far away from the outlet end, is higher than one side of the inner bottom surface of the medicine storage tank, which is close to the outlet end, so that the flowing-out of the liquid medicine of the sludge backfilling agent can be facilitated; a funnel 75 is connected to one side of the top of the medicine storage tank 70, which is positioned on the tank cover 71, through a screw thread, the funnel 75 is used for adding the sludge backfill agent liquid medicine, the top of the funnel 75 is connected with an end cover through a hinge, a filter screen 76 (the aperture of the filter screen is selected according to actual conditions) is arranged in the funnel 75, and the filter screen 76 is used for filtering granular impurities or sediments in the sludge backfill agent liquid medicine.

It will be understood that modifications and variations can be made by persons skilled in the art in light of the above teachings and all such modifications and variations are considered to be within the scope of the invention as defined by the following claims.

Claims

1. A papermaking sludge recycling device, which is characterized by comprising a sludge storage tank (10), the outlet end of the sludge storage pool (10) is communicated with a sludge pump (11), the outlet end of the sludge pump (11) is communicated with a sludge conditioning tank (20), the outlet end of the sludge conditioning tank (20) is communicated with a first sludge adding pump (21), the outlet end of the first sludge adding pump (21) is communicated with the inlet end of a desander (30), the outlet end of the sand remover (30) is communicated with a pressure screen (40), the outlet end of the pressure screen (40) is communicated with a post-grinding pool (50), the outlet end of the post-grinding pool (50) is communicated with a second mud adding pump (51), the outlet end of the second mud adding pump (51) is communicated with a reaction tank (60) through a pipeline, the pipeline of the second sludge adding pump (51) communicated with the reaction tank (60) is provided and communicated with a branch pipeline, the branch pipeline is communicated with a medicine feeding pump (77), and the medicine feeding pump (77) is communicated with the outlet end of the medicine storage tank (70).

2. The paper sludge recycling device according to claim 1, wherein the desander (30) is a conical desander.

3. The paper mill sludge recycling device according to claim 1, wherein a tank cover (71) is connected to the top of the drug storage tank (70) in a threaded manner, a motor (72) is fixed on the tank cover (71), a stirring shaft is fixed on an output shaft of the motor (72), and strip-shaped stirring blades (73) and fan-shaped stirring blades (74) are sequentially arranged on the stirring shaft from top to bottom at intervals.

4. The recycling device of paper sludge according to claim 3, wherein the inner bottom surface of the chemical storage tank (70) is an inclined surface with a certain angle, and one side of the inner bottom surface of the chemical storage tank (70) far away from the outlet end is higher than one side of the inner bottom surface of the chemical storage tank near the outlet end.

5. The paper sludge recycling device according to claim 3, wherein a funnel (75) is connected to the top of the drug storage tank (70) on one side of the tank cover (71) in a threaded manner, and a filter screen (76) is arranged in the funnel (75).