CN216170652U

CN216170652U - Paper grade (stock) pulp sand removing device

Info

Publication number: CN216170652U
Application number: CN202122660438.0U
Authority: CN
Inventors: 郑浦; 陈静
Original assignee: Henan Qiuyue Industrial Co ltd
Current assignee: Henan Qiuyue Industrial Co ltd
Priority date: 2021-11-02
Filing date: 2021-11-02
Publication date: 2022-04-05
Anticipated expiration: 2031-11-02

Abstract

The utility model provides a paper pulp sand removing device for papermaking, which comprises a barrel with a conical lower part, wherein a spiral groove extending to the bottom of the barrel is formed in the inner wall of the barrel; the bottom of setting tank is equipped with the export, and the export is connected through the slag inlet of arranging slag pipe and screw conveyer, arranges the slag pump on the slag pipe, and screw conveyer's bottom is equipped with the otter board, and screw conveyer's below is equipped with leads the thick liquid cover, is equipped with many guide arms in the screw conveyer, and the slip is equipped with the baffle on the guide arm, and the cover is equipped with the spring on the guide arm, and screw conveyer bottom still is equipped with the slag notch. The utility model has simple and ingenious structural design, can efficiently remove impurities such as gravel and the like in paper pulp, reduces the production cost of enterprises and improves the production efficiency.

Description

Paper grade (stock) pulp sand removing device

Technical Field

The utility model relates to the technical field of slurry desanding in the paper making industry, in particular to a paper pulp desanding device for paper making.

Background

The paper pulp is a fibrous substance prepared by using plant fibers as raw materials through different processing methods. Mechanical pulp, chemical pulp and chemimechanical pulp can be classified according to the processing method; the fiber raw materials can also be divided into wood pulp, straw pulp, hemp pulp, reed pulp, cane pulp, bamboo pulp, rag pulp and the like according to the used fiber raw materials. And can be divided into refined pulp, bleached pulp, unbleached pulp, high-yield pulp, semi-chemical pulp and the like according to different purities. Are commonly used in the manufacture of paper and paperboard. Refined pulp is often used as a raw material for producing cellulose derivatives such as cellulose esters and cellulose ethers, in addition to specialty paper. Also used in the fields of artificial fiber, plastic, paint, film, gunpowder and the like. The slurry desanding device in the prior art is complex in structure, poor in gravel removing effect and high in manufacturing cost, and increases the operating cost of enterprises.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a paper pulp desanding device for papermaking aiming at the defects of the prior art, and the specific scheme is as follows:

a paper pulp desanding device for papermaking comprises a barrel with a conical lower part, wherein a spiral groove extending to the bottom of the barrel is formed in the inner wall of the barrel, a pulp inlet pipe is formed in the side wall of the barrel, a barrel cover is movably arranged at the top of the barrel, a filter screen is arranged in the barrel cover, a pulp outlet is formed in the top of the barrel cover and is connected with one end of a pulp discharge pipe, a pulp discharge pump is arranged on the pulp discharge pipe, and a base at the bottom of the barrel is arranged at a liquid inlet of a settling tank; the bottom of setting tank is equipped with the export, the export is connected through the slag inlet of the screw conveyer that row's cinder pipe and slope set up, be equipped with the scum pump on the row's cinder pipe, screw conveyer's bottom is equipped with the otter board, screw conveyer's below be equipped with what the otter board corresponds leads thick liquid cover, the bottom of leading thick liquid cover extends to the thick liquid collecting box, is equipped with many guide arms in the screw conveyer, it is equipped with the baffle to slide on the guide arm, and the cover is equipped with the spring that exerts tension to the baffle on the guide arm, and screw conveyer's bottom still is equipped with the slag notch, the slag notch extends to album sediment case.

Based on the above, the tangent line of the barrel body at the intersection of the pulp inlet pipe and the barrel body is parallel to the axis of the pulp inlet pipe at the intersection.

Compared with the prior art, the utility model has substantive characteristics and progress, and particularly has the following advantages:

1. according to the utility model, the structural design of the cylinder body can enable impurities in paper pulp to be rapidly precipitated, the precipitated impurities are discharged into the spiral conveyer through the slag discharge pipe and the slag discharge pump to be separated from the paper pulp again, the impurities generated by filtering are discharged into the pulp inlet pipe through the return pipe and the return pump to be subjected to desanding operation again, and the impurities enter the slag collection box.

2. According to the utility model, the tangent line of the cylinder body at the intersection of the pulp inlet pipe and the cylinder body is parallel to the axis of the pulp inlet pipe at the intersection, and the structural design can effectively enhance the swirling effect of the pulp entering the cylinder body along the spiral groove and improve the impurity precipitation efficiency.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

In the figure: 1. a barrel; 2. a cylinder cover; 3. a pulp inlet pipe; 4. a filter screen; 5. a settling tank; 6. a pulp outlet; 7. a slurry discharge pipe; 8. a slurry discharging pump; a slag discharge pipe; 12. a slag discharge pump; 13. a screw conveyor; 14. a slag inlet; 15. a screen plate; 16. a slurry guide cover; 17. a slurry collecting box; 20. a baffle plate; 21. a guide bar; 22. a spring; 23. a slag outlet; 24. a slag collection box.

Detailed Description

The technical solution of the present invention is further described in detail by the following embodiments.

Examples

As shown in fig. 1, the utility model provides a paper pulp sand removing device for papermaking, which comprises a cylinder body 1 with a conical lower part, wherein a spiral groove extending to the bottom of the cylinder body 1 is formed in the inner wall of the cylinder body 1, a pulp inlet pipe 3 is arranged on the side wall of the cylinder body 1, a cylinder cover 2 is movably arranged at the top of the cylinder body 1, a filter screen 4 is arranged in the cylinder cover 2, a pulp outlet 6 is formed in the top of the cylinder cover 2, the pulp outlet 6 is connected with one end of a pulp discharge pipe 7, a pulp discharge pump 8 is arranged on the pulp discharge pipe 7, and the bottom of the cylinder body 1 is seated at a liquid inlet of a settling tank 5; the bottom of setting tank 5 is equipped with the export, the export is connected through the slag inlet 14 of the screw conveyer 13 of arranging slag pipe 11 and slope setting, arrange and be equipped with row's sediment pump 12 on the slag pipe 11, screw conveyer 13's bottom is equipped with otter board 15, screw conveyer 13's below be equipped with the thick liquid cover 16 is led to otter board 15 correspondence, the bottom of leading thick liquid cover 16 extends to thick liquid collecting box 17, is equipped with many guide arms 21 in the screw conveyer 13, it is equipped with baffle 20 to slide on the guide arm 21, and the cover is equipped with on the guide arm 21 and applies tensile spring 22 to baffle 20, and screw conveyer 13's bottom still is equipped with slag notch 23, slag notch 23 extends to collection sediment case 24.

In order to improve the rotational flow effect of the slurry entering the cylinder body 1 and further improve the impurity precipitation efficiency in the paper pulp, the tangent line at the intersection of the slurry inlet pipe 3 and the cylinder body 1 on the cylinder body 1 is parallel to the axis of the slurry inlet pipe 3 at the intersection.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention and not to limit it; although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art will understand that: modifications to the specific embodiments of the utility model or equivalent substitutions for parts of the technical features may be made; without departing from the spirit of the present invention, it is intended to cover all aspects of the utility model as defined by the appended claims.

Claims

1. The utility model provides a papermaking pulp sand removing device which characterized in that: the device comprises a barrel (1) with a conical lower part, wherein a spiral groove extending to the bottom of the barrel (1) is formed in the inner wall of the barrel (1), a slurry inlet pipe (3) is formed in the side wall of the barrel (1), a barrel cover (2) is movably arranged at the top of the barrel (1), a filter screen (4) is arranged in the barrel cover (2), a slurry outlet (6) is formed in the top of the barrel cover (2), the slurry outlet (6) is connected with one end of a slurry discharge pipe (7), a slurry discharge pump (8) is arranged on the slurry discharge pipe (7), and the bottom of the barrel (1) is arranged at a liquid inlet of a settling box (5); the bottom of setting tank (5) is equipped with the export, the export is connected through advancing cinder notch (14) of screw conveyer (13) that row's cinder pipe (11) set up with the slope, be equipped with row's cinder pump (12) on row's cinder pipe (11), the bottom of screw conveyer (13) is equipped with otter board (15), the below of screw conveyer (13) be equipped with thick liquid cover (16) are led that otter board (15) correspond, the bottom of leading thick liquid cover (16) extends to slurry collecting box (17), is equipped with many guide arms (21) in screw conveyer (13), it is equipped with baffle (20) to slide on guide arm (21), and the cover is equipped with spring (22) that apply tension to baffle (20) on guide arm (21), and the bottom of screw conveyer (13) still is equipped with slag notch (23), slag notch (23) extend to collection sediment case (24).

2. The papermaking pulp grit removal apparatus as set forth in claim 1, wherein: the tangent line of the barrel body (1) at the intersection of the pulp inlet pipe (3) and the barrel body (1) is parallel to the axis of the pulp inlet pipe (3) at the intersection.