CN214938767U

CN214938767U - Flow conveying equipment of coated white board paper machine with anti-corrosion sterilizing device

Info

Publication number: CN214938767U
Application number: CN202120919794.7U
Authority: CN
Inventors: 张成飞; 张益安; 谢昌武; 颜利兵; 郭鸿政
Original assignee: Dongguan Nine Dragons Paper Co Ltd
Current assignee: Dongguan Nine Dragons Paper Co Ltd
Priority date: 2021-04-29
Filing date: 2021-04-29
Publication date: 2021-11-30
Anticipated expiration: 2031-04-29

Abstract

The utility model discloses a coating white board paper machine drifting equipment with anticorrosive sterilizing equipment, it includes surge tank, filter and head box and constitutes a paper pulp flow line that send, and paper pulp is filtered through the filter by surge tank outflow back, gets into the head box, still includes the germicide feed cylinder, and the germicide feed cylinder through pump and surge tank intercommunication, go into in the surge tank through the germicide pump of pump in with the germicide feed cylinder. And a gravity slag remover is arranged between the pressure stabilizing tank and the filter. The utility model discloses increased anticorrosive sterilizing equipment in the drifting equipment of paper machine to carry out anticorrosive the disinfecting to the paper pulp plain boiled water in the surge tank, guarantee the production of paper pulp aquatic microorganism rotten pulp like this in making whole drifting equipment. Because no rotten pulp is generated in the pressure stabilizing tank, the rotten pulp formed on the inner wall of the pressure stabilizing tank is prevented from entering a feeding device to cause the risk of paper breaking, and meanwhile, because the sediment in the paper pulp is basically not generated, the production operation is stabilized, and the workload of shutdown process cleaning is reduced.

Description

Flow conveying equipment of coated white board paper machine with anti-corrosion sterilizing device

The technical field is as follows:

the utility model relates to a technical field of white board paper machine equipment in the papermaking technology, in particular to coating white board paper machine approach equipment with an anti-corrosion sterilization device.

Background art:

the paper industry demands progressively lower water consumption and tends to operate with closed water circulation. The demand for the simultaneous production of high-quality paper from waste paper has increased year by year, and the result of both trends is a large accumulation of impurities in the white water system of the paper machine, which leads to serious problems with deposits occurring during papermaking. The main deposits are slime-like decay material, i.e. both slurry and stickies. The formation of slime from these precipitates can create a microbial contamination problem due to the involvement of bacteria and fungi. This problem can be directly detrimental to the machine operation by the pulp clogging the water jets, felts, pipes, etc., and if the pulp is large, some of the pulp pieces can fall off the surface causing sheet breaks and the final product has spots or holes. For the above reasons, the present inventors have proposed the following technical solutions for the above-mentioned problems that the sludge enters a short circulation system after falling off and is scattered or removed by a pressure screen, but if a microbial sludge is generated in a feeding system of a paper machine, the sludge is directly fed onto a wire after falling off and is pressed by a wire part, which is likely to cause paper breakage due to drainage or crushing.

The utility model has the following contents:

the utility model aims to solve the technical problem that the prior art is not enough to overcome, a coating white board paper machine drifting equipment with anticorrosive sterilizing equipment is provided.

In order to solve the technical problem, the utility model discloses a following technical scheme: a coated white board paper machine approach flow apparatus with anti-corrosion sterilization, comprising: a germicide feed cylinder that is used for saving surge tank, filter and head box of paper pulp, surge tank, filter and head box constitute a paper pulp flow and send the line, paper pulp is by the surge tank outflow back, filters through the filter, gets into the head box, still including a splendid attire germicide, and germicide feed cylinder through pump and surge tank intercommunication, go into the surge tank through the germicide pump of pump in with the germicide feed cylinder.

Furthermore, in the above technical scheme, a gravity slag remover is arranged between the surge tank and the filter, and the paper pulp flows out of the surge tank and then enters the filter for filtration after passing through the gravity slag remover.

Further, in the above technical scheme, a tailings discharge port is arranged above the gravity slag remover, a heavy slag discharge port is arranged below the gravity slag remover, and the tailings discharge port is communicated with the surge tank; the heavy slag discharging port is used for discharging heavy slag.

Further, in the above technical solution, the approach device includes four pulp approach lines, which are respectively: a surface layer pulp flow conveying line, a lining layer pulp flow conveying line, a core layer pulp flow conveying line and a bottom layer pulp flow conveying line; the four paper pulp flow lines are connected with the bactericide charging barrel together; the heavy slag discharging openings of the gravity slag remover in the four paper pulp flow conveying lines are connected with a heavy slag collector together; impurity removing openings of the filters in the four paper pulp flow-conveying lines are connected to an impurity collector together.

Further, in the above technical solution, a check valve is disposed between the pump and the surge tank.

After the technical scheme is adopted, compared with the prior art, the utility model has following beneficial effect: the utility model discloses increased anticorrosive sterilizing equipment in the drifting equipment of paper machine to carry out anticorrosive the disinfecting to the paper pulp plain boiled water in the surge tank, guarantee the production of paper pulp aquatic microorganism rotten pulp like this in making whole drifting equipment. Because no rotten pulp is generated in the pressure stabilizing tank, the rotten pulp formed on the inner wall of the pressure stabilizing tank is prevented from entering a feeding device to cause the risk of paper breaking, and meanwhile, because the sediment in the paper pulp is basically not generated, the production operation is stabilized, and the workload of shutdown process cleaning is reduced. Finally, the utility model discloses increased toper gravity scummer in the drifting equipment, utilized the gravity difference to detach the heavy impurity in the paper pulp, the tail thick liquid gets back to the surge tank through the return circuit and then gets into the gravity scummer and handles, and good thick liquid gets into the filter and filters, detaches the rotten thick liquid and the light impurity of caking, then enters into each layer head box, and the heavy impurity is through drying, dehydration, send the thermal power plant to burn after the concentration, and impurity such as rotten thick liquid sends the secondary fibre retrieval and utilization behind the slurrying workshop recovery the inside.

Description of the drawings:

fig. 1 is a schematic structural diagram of the present invention.

The specific implementation mode is as follows:

the present invention will be further described with reference to the following specific embodiments and accompanying drawings.

The utility model relates to a coating white board paper machine drifting equipment with anticorrosive sterilization, it is shown in the figure 1, and it includes four paper pulp drifting lines, is respectively: top layer pulp flow line 101, bottom layer pulp flow line 102, core layer pulp flow line 103 and bottom layer pulp flow line 104. Of course, depending on the paper making requirements, the corresponding pulp flow lines may be reduced. Each pulp flow line comprises: a surge tank 1 for storing pulp, a filter 2, a headbox 3, a gravity cleaner 5, a pump 41 and a check valve 42. The four pulp flow lines are jointly connected to the bactericide barrel 4.

The bactericide cylinder 4 is used for containing bactericide, the bactericide is pumped out from the bactericide cylinder 4 through the pump 41, passes through the check valve 42 and then enters the pressure stabilizing tank 1 connected with the bactericide, and the paper pulp in the pressure stabilizing tank 1 is sterilized, so that microorganism rotten pulp formed on the inner wall of the pressure stabilizing hook is avoided.

A gravity slag remover 5 is arranged between the pressure stabilizing tank 1 and the filter 2, and the paper pulp after the sterilization treatment flows out of the pressure stabilizing tank 1 and enters the gravity slag remover 5. After being removed by a gravity slag remover 5, the filter 2 is filtered. The gravity slag remover 5 is provided with a tail slurry discharging port 51 at the upper part and a heavy slag discharging port 52 at the lower part, and the tail slurry discharging port 51 is communicated with the surge tank 1; the heavy slag removal port 52 is used for removing heavy slag. The utility model discloses what well gravity slag separator 5 adopted is toper gravity slag separator, it is according to the heavy impurity in the thick liquid of gravity difference detach, the tail thick liquid gets rid of mouthful 51 return circuits through the tail thick liquid and flows back to surge tank 1 in, reentrant gravity slag separator 5 is handled, good thick liquid gets into filter 2 and filters after gravity slag separator 5, through filter 2 detach the rotten thick liquid and the light impurity of conglomeration, enter into the head box 3 in each paper pulp stream send the line at last, carry out the operation of the paper making of flowing pulp.

The heavy slag discharging openings 52 of the gravity slag removers 5 in the four paper pulp flow-conveying lines are jointly connected with the heavy slag collector 6, the collected heavy slag is dried and dehydrated by the drying and dehydrating device 61, and is sent to the thermal power plant 62 for incineration after being concentrated. Meanwhile, impurity removing openings of the filters 3 in the four pulp flow lines are jointly connected to the impurity collector 7, and the collected light impurities are sent to the pulping workshop 71 to recover secondary fibers in the impurities.

After the technical scheme is adopted in the utility model, the slagging-off effect is better in its surge tank 1, hangs on the wall and starching obviously reduces, and white water detects BOD, COD content obviously descends, detects bacterial content and obviously descends, and clean not rotten thick liquid produces in the surge tank 1, avoids hanging on the 1 wall of surge tank and putts the risk that the thick liquid gets into follow-up head box and arouses the paper break. Because the sediment in the paper pulp is basically not existed, the production operation is stabilized, and the workload of shutdown process cleaning is reduced. The system microorganism is obviously controlled, the system cleanliness is obviously improved, and the checked bacteria content is controlled at 10^-6。

Of course, the above description is only an exemplary embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent changes and modifications made by the constructions, features, and principles of the present invention in accordance with the claims of the present invention are intended to be included in the scope of the present invention.

Claims

1. A coated white board paper machine approach flow apparatus with anti-corrosion sterilization, comprising: a surge tank (1), filter (2) and head box (3) for saving paper pulp, surge tank (1), filter (2) and head box (3) constitute a paper pulp flow and send the line, paper pulp is by surge tank (1) outflow back, filters through filter (2), gets into head box, its characterized in that:

the sterilizing device is characterized by further comprising a sterilizing agent charging barrel (4) for containing a sterilizing agent, wherein the sterilizing agent charging barrel (4) is communicated with the pressure stabilizing tank (1) through a pump (41), and the sterilizing agent in the sterilizing agent charging barrel (4) is pumped into the pressure stabilizing tank (1) through the pump (41).

2. The coated white board paper machine approach flow apparatus with corrosion protection and sterilization of claim 1, characterized in that: a gravity slag separator (5) is arranged between the pressure stabilizing tank (1) and the filter (2), and the paper pulp enters the filter (2) for filtration after flowing out of the pressure stabilizing tank (1) and passing through the gravity slag separator (5).

3. The coated white board paper machine approach flow apparatus with corrosion protection and sterilization of claim 2, characterized in that: a tail slurry removing opening (51) is formed above the gravity slag remover (5), a heavy slag removing opening (52) is formed below the gravity slag remover, and the tail slurry removing opening (51) is communicated with the surge tank (1); the heavy slag discharging port (52) is used for discharging heavy slag.

4. A coated white board paper machine approach flow apparatus with anti-corrosion sterilization in accordance with any of claims 1-3, characterized by: the approach flow equipment comprises four paper pulp approach flow lines which are respectively as follows: a surface layer pulp flow line (101), a lining layer pulp flow line (102), a core layer pulp flow line (103) and a bottom layer pulp flow line (104); the four paper pulp flow lines are connected into a bactericide barrel (4) together; the heavy slag discharging openings (52) of the gravity slag removers (5) in the four paper pulp flow-conveying lines are connected with the heavy slag collector (6) together; impurity removing openings of the filters (3) in the four paper pulp flow-conveying lines are connected into an impurity collector (7) together.

5. The coated white board paper machine approach flow apparatus with corrosion protection and sterilization of claim 4, wherein: and a check valve (42) is arranged between the pump (41) and the pressure stabilizing tank (1).