CN2096578U

CN2096578U - Paper machine and equipment for reclaimed waste paper

Info

Publication number: CN2096578U
Application number: CN 91208181
Authority: CN
Inventors: 金明
Original assignee: Individual
Current assignee: Individual
Priority date: 1991-05-20
Filing date: 1991-05-20
Publication date: 1992-02-19

Abstract

The utility model discloses paper making whole set of equipment for reclaiming waste paper, which is characterized in that the baking cylinder of the paper machine is not heated by steams but heating thermophore (oils or water) of a heating furnace. The heating thermophore is pumped into the baking cylinder with a pump to cause the baking cylinder to reach the needed temperature. Then the heating thermophore returns to the heating furnace and carries out circulation. The residual heat of the smokes discharged by the heating furnace is used as a heat source of a hot wind cover. The pulp making equipment is provided with crude pulps in a waterpower pulp crushing mechanism and refined pulps in a rotary sieve mechanism. The utility model has simple structure and keeps the original fibers of the waste paper to the greatest extent. Due to the use of the waste paper, the problem of environmental pollution does not exist. The whole set of equipment has the advantages of simple and reasonable structure, safe operation, energy saving, water saving, small occupation of land and low cost. The whole set of equipment can be matched with serialized machine groups based on product needs. The whole set of equipment is novel equipment for paper making factories opened by factories, township enterprises and families.

Description

Paper machine and equipment for reclaimed waste paper

The utility model relates to a kind of regenerated paper making machinery and equipment, and particularly the drying cylinder of paper machine heating is with steam but with oily temperature required papermaking equipment and the equipment of being heated to.

Aspect the waste paper recycling, China compares with industrially developed country in the world and has a long way to go, state's waste paper such as the U.S., Japan, Canada account for the 46-49% of whole papermaking materials, and China has only 8-9%, main cause is present domestic paper making equipment complex structure, investment cost height, and can not be fit to the regenerated paper making requirement fully.

The purpose of this utility model is to provide a kind of rational in infrastructure, simple, and is easy to operate without steam boiler, energy-saving safety, and floor space is little, be suitable for waste paper regenerated papermaking equipment and equipment fully, and it is fit to factory, small towns and family and does the paper mill.

The purpose of this utility model is achieved in that regenerated paper making machinery and equipment divide slurrying and papermaking two parts.Pulping equipment is only slightly starched with hydrabrusher system, with whiz sieve series refining.It has replaced the plurality of devices such as beater, fiberizer, thickener, vibrating screen, screenings separator of general paper-making pulping equipment fully.This is energy savings not only, reduces equipment investment, and main is that hydraulic pulping, fluid are discongested, separate foreign material (heavy and frivolous thing), basically avoided mechanical failure paper pulp fibrillation, compared, improved the intensity 20-50% of recycled paper with the product of other equipment.

The drying cylinder of paper machine is the key equipment of paper drying, and the equipment that the utility model provides is without Steam Heating, is heated by heating furnace but make thermophore with oil (or water), and hot oil pump pumps into drying cylinder, returns heating furnace again, realizes the circulation heated drying cylinder.And the heating furnace smoke discharging residual heat is as the thermal source use of air bells cap.

Compare with Steam Heating with oily heated drying cylinder, have obvious advantage with the oil heating:

1, oily heating can realize normal pressure or minute-pressure (the 0.9kg/ square centimeter is following) running; And Steam Heating needs the 4-12kg/ cm2 pressure.

2, oily heating furnace structure is simple, can reduce 50-80% than using steam boiler to invest, and security of operation, and is reliable.

3, all disadvantages of Steam Heating condensed water have been eradicated in the oil heating, the thermal efficiency is improved to greatest extent, and makes paper uniform drying degree reach desirable improvement;

4, the oil heating realizes circular flow, discharges with steam condensate (SC) and compares, and has saved fuel, and the heating furnace smoke discharging residual heat utilizes, and has not only improved productivity ratio, and has reduced production cost;

5, oil heats management, maintenance cost is smaller

Oil heated drying cylinder and electrical heating, flame heat ratio, the electrical heating cost is too high, and Flame Heating Temperature is difficult to control.

The most scabrous with the deep fat heated drying cylinder is drying cylinder two ends turnover oil connection leakage of oil problem, the utility model adopts the swivel joint of mechanical seal structure, but more than the steady and continuous operation 1-2, its leakage rate does not almost have or seldom, per hour leakage rate Q≤0.01-2mt.

In like manner, also can use the hot water heated drying cylinder, equipment is basic identical, and just hot water need reach steam heated pressure.

Summarize it, set up the paper mill of equal scale, the equipment that the utility model provides is the 1/2-1/4 of existing general device investment, floor space reduces 1/4-1/2, energy consumption reduces 20-50%, and production cost reduces 25-50%, the few 1/3-1/2 of water depletion, and can realize CR production, and product quality is greatly improved.

Concrete structure of the present utility model is provided by following examples and accompanying drawing thereof.Fig. 1 is regenerated paper making machinery and equipment schematic diagram (is example with single cylinder list garden net paper machine), and Fig. 2 is the A-A generalized section of drying cylinder, and process flow is described below:

Waste paper and water add in the hydrabrusher (1) with certain proportion, thick slurry is pressed into whiz sieve (4) by stillpot (2) through pump (3), under the rotor effect, thick slurry moves down along garden Zhou Xuanzhuan in the cone, the heavy foreign material sink to the bottom, by center on rise, because the effect of rotor good slurry by sieve plate orifice flow gone out, by top regularly discharged again by light weight sundries for slurries.Paper pulp enters reserve pit (8).More than be pulping machinery and equipment, high standard also can be sieved at whiz and be set up bleaching and washing facility between (4) and the reserve pit (8) if desired.

Paper machine part: refining is flowed in head box or the stock tank (10) by pipeline (9), the cylinder mould online, and through dehydration, drying cylinder in the squeezing (6) drying is through the effect of air bells cap high speed thermal current, by reel machine (7) coil paper.

Drying cylinder heating is without steam, but with oil, and oil is heated can electricity consumption, also will be using heating furnace, but preferred plan is to use heating furnace.Illustrate with A-A below:

Heating furnace (18) is with the oil heating, and deep fat enters in the oil pocket (15) of drying cylinder through the swivel joint (17) of mechanical seal structure, heated drying cylinder, and heat-insulation layer (14) exempts to make heat waste.Since the effect of hot oil pump (16), and realize the Circulation and Hot Oil Spray heating.

The chimney of heating furnace (10) (12,11) waste heat is made the thermal source of air bells cap (5).

Regenerated paper making machinery and equipment that the utility model provides, can produce the various paper that general paper machine is produced with dissimilar combinations, but produce fine paper and similar waste paper must be arranged, so from economy and actual conditions, waste paper regenerated machinery and equipment are to produce toilet paper, corrugated paper, and bag of cement lining paper, saturating felts, wrapping paper, big gun paper etc. are advisable.

Claims

1, regenerated paper making machinery comprises slurrying with equipment, paper machine two parts, this complete equipment feature is: hydrabrusher (1) system is slurry slightly, whiz sieve (4) system refining, the drying cylinder of paper machine (6) heating is that oil (or water) is made thermophore, heating furnace (18) is arranged, and pump (16) is realized the circulation heating, and the smoke discharging residual heat of oily heating furnace (18) is made the thermal source of air bells cap (5).

2, equipment according to claim 1, the drying cylinder (6) that it is characterized in that the paper machine are that oil (or water) is made thermophore, have heating furnace (18) pump (16) to realize the circulation heating.

3, equipment according to claim 1 is characterized in that pulping equipment hydrabrusher (1) system slightly slurry, whiz sieve (4) system refining.

4, equipment according to claim 1 is characterized in that the thermal source of the smoke discharging residual heat of heating furnace (18) as air bells cap (5).