CN201155068Y

CN201155068Y - Broke processing equipment at net part of paper-making machine

Info

Publication number: CN201155068Y
Application number: CNU2008200056384U
Authority: CN
Inventors: 陈劲
Original assignee: CHINA CEC ENGINEERING Corp
Current assignee: CHINA CEC ENGINEERING Corp
Priority date: 2008-03-27
Filing date: 2008-03-27
Publication date: 2008-11-26
Anticipated expiration: 2018-03-27

Abstract

The utility model discloses a machine net-part broke processing device, comprising a voltage loss pool and a broke pulp tower communicated with the voltage loss pool; the broke pulp tower can be communicated with a save all in a machine, wherein the voltage loss pool is provided with a guide tank for receiving edge broke; the guide tank is sequentially communicated with a machine water tank of the machine and the save all. By optimizing procedures, the net-part broke processing device can effectively separate and recycle the broke pulp with different properties generated by different working conditions, thereby saving productive investment, reducing energy consumption, reducing the cleaning and scavenging time of the device, and improving the production efficiency.

Description

A kind of web part of paper machine broke treatment equipment

Technical field

The utility model belongs to the paper-making technology field, is specifically related to a kind of web part of paper machine broke treatment equipment.

Background technology

Paper industry is an industry of China's high speed development, along with the development of society and the raising of people's living standard, demand to various high-quality paper is also more and more outstanding, past medium-sized and small enterprises low grade products is because highly energy-consuming, high pollution is transformed in succession and close, and the output of paper product and quality far can not satisfy the requirement in market.

National Development and Reform Committee points out in " the papermaking industry development policy " of issue on November 2nd, 2007 owing to be subjected to the constraint of aspects such as resource, environment, papermaking enterprise will be worked harder at energy-saving and cost-reducing, protection environment, aspect such as improve the quality of products, increase economic efficiency, towards the modernized big insutry direction sustainable development of high efficiency, high-quality, high benefit, low consumption, low emission; Must adhere to the basic principle of cycle development, environmental protection, technological innovation, advance cleaner production, economize on resources.

The recycling of broken is the important step in the production technology in the paper process, by the reuse broken paper of manufacturing paper with pulp, can improve the level of resources utilization, reduces pollutional load and increases economic benefit of enterprises.Broken different workshop sections, different link odds in process of production is different with quality, has intermittent characteristics usually; And broken is not wish in the production process to produce after all, and the principle that adopts when broke treatment equipment is carried out technical flow design is should not be too complicated, and the lectotype selection ability also should not be too big.

In the paper making process, web part of paper machine disposes the high pressure trim shower, and when ordinary production, the trimming that wet web is cut off falls into volt with the side cut flushing water and decreases the pond, and the broke amount of generation is about 1～2%; Produce when undesired, paper web can not be introduced press section by wet end smoothly, produce the disconnected paper of 100% output in short-term, and and flushing water fall into volt together and decrease the pond, what the broken that the broken that traditional broken recycling equipment produces ordinary production and producing produces when undesired adopted is the mixed processing mode.

Fig. 1 is the structural representation of traditional web part of paper machine broken recycling equipment; Fig. 2 is the structural representation in broken pond among Fig. 1.As shown in Figure 1 and Figure 2, trimming broken and paper web broken all fall into volt and decrease pond 1, and volt decreases the pond 1 other first broken stock pump 3 and the wet trim pump 4 of being provided with.During ordinary production, the trimming broken pours volt by water under high pressure and decreases pond 1, is extracted out by wet trim pump 4 after plain boiled water H1 dilution, is back to volt again and decreases pond 1 circulation; Reach a certain height when volt decreases pond 1 liquid level (be approximately volt decrease pool volume 70%) time, valve V1 closes, valve V2 opens, waste stuff is delivered to waste stuff tower 5.Undesired when the disconnected paper of view picture occurring when producing, a large amount of paper web brokens fall into volt and decrease pond 1, and agitator 2 starts, and the first broken stock pump 3 is opened, and waste stuff is sent to waste stuff tower 5.When disconnected paper stops, volt decreases pond 1 liquid level when falling back to certain altitude, and the first broken stock pump 3 stops, and valve V3 closes, and whole system enters normal production programme.Waste stuff in the waste stuff tower 5 is delivered to through the second broken stock pump 6 and is entered broke storage chest 8 after decker 7 concentrates, and send the main flow system to join slurry by stock pump 10 and copies paper.

By on can find out, traditional web part of paper machine broken recycling equipment is after volt decreases pond 1, disposed the first broken stock pump 3, wet trim pump 4, decker 7, broke storage chest 8 and stock pump 10 totally 5 treatment facilities, engineering construction investment and energy resource consumption are all bigger in the production process.

The utility model content

Technical problem to be solved in the utility model is at web part of paper machine broken recycling equipment above shortcomings of the prior art, a kind of broke treatment flow process of optimizing is provided, reaches energy-conservation, save the web part of paper machine broke treatment equipment of the purpose of investment by thin device.

The technical scheme that solution the utility model technical problem is adopted is that this web part of paper machine broke treatment equipment includes the waste stuff tower that volt decreases the pond, is communicated with volt damage pond, the waste stuff tower can be communicated with the saveall in the paper machine, wherein, volt decreases the pond and is provided with the guiding gutter that receives the trimming broken, and described guiding gutter is communicated with successively with machine water groove, the saveall of paper machine.

The guiding gutter tiltable is provided with, and can guarantee that like this damage of damp paper pulp flows automatically smoothly.Its higher end is provided with trimming flushing water interface H2, and the height of low end is higher than volt and decreases pulp crushing area in the pond, and is higher than the liquid level in the machine water groove, decreases the pond to prevent that plain boiled water in the machine water groove from flowing backwards to enter the hottest period of the summer.

The width of guiding gutter can be 100-300mm; Its cross-sectional height can be 400-600mm, is preferably 500mm.

Described volt decreases Chi Zhongke and is provided with agitator.

The utility model wet end broke treatment equipment is by optimizing flow process, and the effective separating and recovering of broken slurry of different nature that different operating modes are produced has been saved and produced investment, reduced energy resource consumption, reduced the time of equipment cleaning blowdown, improved production efficiency, its beneficial effect is as follows:

1. the trimming broken that produces in the time of can be with ordinary production and produce the disconnected paper of view picture that produces when undesired and separate has fully been optimized flow scheme design, has simplified process equipment, has reduced the intermediate link that slurry is handled, and has reduced the blowdown load of entire equipment;

2. need not to be provided with wet trim pump 4, because this pump necessary setting in legacy equipment, and in ordinary production, need continuous running, therefore when saving equipment investment, also can save a large amount of energy resource consumptions.To produce 600 tons of paper production lines daily is example, the about 45kW of wet trim pump 4 installations, and a year saving electricity consumption can reach 220000kWh;

3. need not to be provided for decker 7, broke storage chest 8, agitator 9, the broken stock pump 10 that broken concentrates, not only save equipment and construction investment, and reduced energy resource consumption.To produce 600 tons of paper production lines daily is example, and it is about 800,000 to save equipment investment, the about 100m of construction area ², save the about 90kW of installation, year saving electricity consumption 440000kWh.

Description of drawings

Fig. 1 is the structural representation of traditional web part of paper machine broken recycling equipment

Fig. 2 decreases the structural representation in pond the second of the three ten-day periods of the hot season for Fig. 1

Fig. 3 is the structural representation of the utility model web part of paper machine broke treatment equipment

Fig. 4 decreases the structural representation in pond the second of the three ten-day periods of the hot season for Fig. 3

Fig. 5 decreases the side view of pond and machine water groove the second of the three ten-day periods of the hot season for Fig. 3

Among the figure: 1-volt decreases the difference in height of liquid level in lower end of the pond 2-agitator 3-first broken stock pump 4-wet trim pump 5-waste stuff tower 6-second broken stock pump 7-decker 8-broke storage chest 9-agitator 10-stock pump 11-machine water groove 12-white water recycle pump 13-saveall 14-guiding gutter V1, V2, V3-valve H1-plain boiled water H2-trimming flushing water interface H3-high pressure liquid drugs injection H4-guiding gutter least significant end h-guiding gutter and the machine water groove

The specific embodiment

Below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail.

Following embodiment is indefiniteness embodiment of the present utility model.

As shown in Figure 3, the utility model web part of paper machine broke treatment equipment includes volt and decreases pond 1, decreases the waste stuff tower 5 that pond 1 is communicated with volt, the pool wall both sides that volt decreases pond 1 are provided with the guiding gutter 14 that can receive the trimming broken, described guiding gutter 14 is communicated with machine water groove 11, saveall 13 successively, waste stuff tower 5 can be set to be communicated with saveall 13 or be communicated with stock mixing system, the trimming broken arrives saveall 13 through guiding gutter 14, machine water groove 11, and the paper web broken decreases pond 1, waste stuff tower 5 arrival saveall 13 or delivery slurry systems through volt.

Shown in Fig. 4,5, guiding gutter 14 vertically is located at the both sides that volt decreases pond 1 along the paper machine, and its outer is the external boundary that volt decreases pond 1, and along about 100-300mm place of decreasing apart from high pressure liquid drugs injection H3 deflection volt in the pond 1, promptly its width is 100-300mm in it; The about 500mm of the cross-sectional height of guiding gutter 14 can hold the paper pulp of certain flow.Guiding gutter 14 for following current to gradient setting, can guarantee that like this damage of damp paper pulp flows automatically smoothly.Guiding gutter least significant end H4 (being exit) should be higher than volt and decrease pulp crushing area in the pond 1, and is higher than the liquid level h in the paper machine machine water groove 11, decreases pond 1 to prevent that plain boiled water in the machine water groove 11 from flowing backwards to enter the hottest period of the summer; Its most significant end is provided with trimming flushing water interface H2, and the caliber of trimming flushing water interface H2 is about DN50-80, decides with side cut is wide on paper machine production capacity.

During ordinary production, the trimming broken is cut edge by high pressure liquid drugs injection H3 and is fallen into volt damage pond 1, diversed groove 14 is caught before the pulp crushing area that enters volt damage 1 bottom, pond, trimming flushing water interface H2 opens, trimming broken dilution back is incorporated in the machine water groove 11 by pipeline, direct sending is to the import department of white water recycle pump 12, and send in the saveall 13 by white water recycle pump 12, the introducing of broken limit slurry makes fiber content increase in the plain boiled water on the one hand, replaceable on the other hand part bed course slurry, reduce fiber consumption, the allocative abilities of the bed course stock pump in the saveall 13 is reduced.Undesired when the disconnected paper of view picture occurring when producing, the paper web broken falls into volt and decreases pond 1, and agitator 2 starts, and valve V3 opens, and the first broken stock pump 3 is opened, and valve V4 is opened to certain aperture makes an amount of backflow of slurry to keep the liquid level that volt decreases pond 1; When disconnected paper stops, volt decrease pond 1 liquid level fall back to setting height (setting height be approximately volt decrease pit level 20%) time, the first broken stock pump 3 stops, valve V3, V4 close, and return normal production programme.The waste stuff of waste stuff tower 5 send saveall 13 to do the bed course slurry by the second broken stock pump 6 and uses.

In the tradition papermaking process flow, the trimming broken does not enter in the saveall 13, so the fiber content of plain boiled water is lower in the saveall 13, and saveall 13 itself needs certain slurry layer to form filter pad; And in the utility model,, send the plain boiled water amount of saveall 13 very big though the amount of trimming broken is less, but along with the trimming broken continuously enters, make that fiber content increases in the plain boiled water, thereby can reduce the slurry amount of coming from blending chest, the ability of bed course slurry delivery pump can correspondingly reduce.

Traditional web part of paper machine broken recycling equipment is when ordinary production, volt decreases in the pond 1 only has the trimming to fall into, the paper web amount is also little, and the shower water or the washing water quantity that enter in the volt damage pond 1 are bigger, therefore pulp density is lower in the volt damage pond 1, just can send into stock mixing system after need handling through thickener; During significantly disconnected paper,, enter volt and decrease water shortage in the pond 1 so that waste stuff is diluted to low concentration, but maintain higher concentration, at this moment just need after adding a small amount of plain boiled water fine setting reduction concentration, just can send into stock mixing system because fibre weight is bigger.And in the utility model web part of paper machine broke treatment equipment, the lower waste stuff of concentration by the trimming generation, before entering volt damage pond 1, draw by guiding gutter 14, and the waste stuff that the disconnected paper of view picture produces can be regulated concentration in volt damage pond 1, therefore the wet end waste stuff in the utility model need not pass through concentration, can directly send saveall 13 to make bed course slurry and use or enter the main flow stock mixing system, make that production process is easier to obtain stable control.

Claims

1. web part of paper machine broke treatment equipment, including volt decreases pond (1), decreases the waste stuff tower (5) that the pond is communicated with volt, waste stuff tower (5) can be communicated with the saveall (13) in the paper machine, it is characterized in that lying prostrate and decrease the guiding gutter (14) that the pond is provided with reception trimming broken, described guiding gutter is communicated with successively with machine water groove (11), the saveall (13) of paper machine.

2. web part of paper machine broke treatment equipment according to claim 1 is characterized in that described guiding gutter (14) vertically is located on the two side that volt decreases pond (1) along the paper machine.

3. web part of paper machine broke treatment equipment according to claim 2, it is characterized in that guiding gutter (14) is obliquely installed, a higher end is provided with trimming flushing water interface H2, and the height of a lower end is higher than the pulp crushing area in the volt damage pond (1), and is higher than the liquid level in the machine water groove (11).

4. web part of paper machine broke treatment equipment according to claim 3, the width that it is characterized in that guiding gutter (14) is 100-300mm, its cross-sectional height is 400-600mm.

5. according to the described web part of paper machine broke treatment of one of claim 1-4 equipment, it is characterized in that being provided with agitator (2) in the described volt damage pond (1).