CN103276766A

CN103276766A - Steam backwater recycling technology

Info

Publication number: CN103276766A
Application number: CN2013102294819A
Authority: CN
Inventors: 李万东; 陈小林
Original assignee: XINJIANG DAHE GREASE Co Ltd
Current assignee: XINJIANG DAHE GREASE Co Ltd
Priority date: 2013-06-07
Filing date: 2013-06-07
Publication date: 2013-09-04

Abstract

A steam backwater recycling technology is disclosed. The steam backwater recycling technology is characterized in that: steam generated by a steam boiler is transmitted to a refining workshop, a leaching workshop and a pre-squeezing workshop sequentially through a total steam pipe; backwater of the steam generated in the heat supply transmission of the refining workshop, the leaching workshop and the pre-squeezing workshop is communicated with a backwater box through a backwater pipe; a first backwater branch pipe and a second backwater branch pipe are arranged respectively between the refining workshop and the leaching workshop and between the leaching workshop and the pre-squeezing workshop; when the temperature of the backwater from the refining workshop is higher than a processing temperature of the leaching workshop, the backwater from the refining workshop flows into the leaching workshop through the first backwater branch pipe for recycling; and when the temperature of the backwater from the leaching workshop is higher than a processing temperature of the pre-squeezing workshop, the backwater from the leaching workshop flows into the pre-squeezing workshop through the second backwater branch pipe for recycling use. The steam backwater recycling technology is rational and scientific in design and simple as well as easy in operation, can recycle the backwater at a relatively low investment, not only makes up insufficient heat supply for the subsequent workshops, but also reduces loss of heat energy and saves cost.

Description

Steam backwater reutilization technology

Technical field

The present invention relates to a kind of steam backwater reutilization technology, specifically be a kind of be the steam backwater reutilization technology of the edible vegetable oil processing plant of thermal source with steam.

Background technology

China is that agricultural product such as a grain, grease, fruits and vegetables are imported and exported big country, and the development that edible vegetable oil is produced with process technology not only has long history, and the market demand that rich in natural resources is arranged and constantly enlarge.The edible vegetable oil method for processing mainly is milling process and lixiviation process at present, and edible vegetable oil processing enterprise mainly gathers around and has plenty of cottonseed, the oil expression workshop of oily certain herbaceous plants with big flowers, soybean, vegetable seed production and processing, leaches workshop and concise workshop, and each production department all to be thermal source with steam process.

The transmission medium of steam heating boiler backwater amount and heating demand steam heating boiler is steam, and pot water absorbs heat by heating surface, and water temperature constantly rises, and the vaporization of pot water generates becomes saturated vapour.Saturated vapour separates through carbonated drink, enters the pipeline pipe network by stop valve and transfers to each heat supply workshop.In the vapor transmission process, will produce a large amount of backwater, return water temperature is about 70 ℃.Reason because of vaporization, backwater can't directly inject boiler, need be cooled to feed water and just can enter the steam generator system recycling after the temperature that needs, this certainly will cause a large amount of heat-energy losses and waste, if backwater is directly discharged, this will also can carry the discharge of steam, bring steam around can giving, and be unfavorable for clean environment.And meanwhile in the transmission course of steam, the postorder workshop but toward contact because the heat supply deficiency, and heaters such as needs increase electric heater carry out spot heating, this not only wastes energy, also can bring potential safety hazard to the workshop, therefore how designing a kind of feasible steam backwater reutilization technology rationally is problem anxious to be solved at present.

Summary of the invention

Technical problem to be solved by this invention provides a kind of feasible steam backwater reutilization technology rationally, have characteristics easy to operation, the steam backwater can be taken full advantage of, not only replenish the heat supply deficiency in postorder workshop, also reduce the loss of heat energy, saved cost.

The present invention solves the problems of the technologies described above the technical scheme that adopts: a kind of steam backwater reutilization technology, it is characterized in that: the steam that produces from steam heating boiler transfers to the refining plant successively through total steam pipe, leach workshop and the pre-workshop of pressing, steam is in the refining plant, leaching the backwater that produces in workshop and the heat supply transmission of pre-press for extracting juice workshop is connected with recovery tank by return pipe, in refining plant and leaching workshop, leach and first backwater to be set respectively between workshop and the pre-press for extracting juice workshop to be in charge of with second backwater and to be in charge of, the return water temperature that comes out when the refining plant is higher than when leaching the workshop processing temperature, the backwater that comes out in the refining plant is in charge of to enter by first backwater and is leached the workshop recycling, meanwhile, when leaching the return water temperature that comes out in the workshop and be higher than pre-press for extracting juice workshop processing temperature, leach the backwater that comes out in the workshop and be in charge of by second backwater and enter pre-press for extracting juice workshop recycling.

As improvement, described first backwater is in charge of to be in charge of with second backwater and is respectively equipped with control valve.

Improve, the backwater in the described recovery tank finally returns in the steam heating boiler recycling by pipeline again.

Compared with prior art; the invention has the advantages that: in the refining plant and leach the workshop, leach and first backwater is set respectively between workshop and the pre-press for extracting juice workshop is in charge of with second backwater and is in charge of; make the high-temperature tempering that produces in the vapor transmission process use for the heat supply of postorder workshop like this; loss and the waste of heat had both been avoided; backwater circulation can also be used, be conducive to environmental protection.Steam backwater reutilization technology of the present invention science reasonable in design, easy and simple to handle feasible, just the steam backwater in workshop can be taken full advantage of with less input, increase the heat capacity of whole system, not only replenish the heat supply deficiency in postorder workshop, also reduce the loss of heat energy, saved cost.

Description of drawings

Fig. 1 is the structural representation of steam backwater recycling provided by the invention system.

The specific embodiment

Describe in further detail below in conjunction with the present invention of accompanying drawing embodiment.

As shown in Figure 1, a kind of steam backwater reutilization technology, the steam that produces from steam heating boiler 1 transfers to refining plant 3 successively through total steam pipe 2, leach workshop 4 and the pre-workshop 5 of pressing, steam is in the refining plant 3, leaching the backwater that produces in workshop 4 and the 5 heat supplies transmission of pre-press for extracting juice workshop is connected with recovery tank 7 by return pipe 6, between refining plant 3 and leaching workshop 4, first backwater is set and is in charge of 8, between leaching workshop 4 and pre-press for extracting juice workshop 5, second backwater is set and is in charge of 9, and being in charge of 8 and second backwater at first backwater is in charge of 9 and is respectively equipped with control valve 10, when the temperature of the backwater that comes out when refining plant 3 is higher than the processing temperature that leaches workshop 4, control valve 10 is opened, the backwater that comes out in refining plant 3 is in charge of 8 by first backwater and is entered leaching workshop 4 recyclings, same, when the temperature that leaches the backwater that comes out in workshop 4 is higher than pre-press for extracting juice workshop 5 processing temperatures, the backwater that comes out in leaching workshop 4 is in charge of 9 by second backwater and is entered pre-press for extracting juice workshop 5 recyclings, backwater after the recycling enters in the recovery tank 7 by return pipe 6, and the backwater in the described recovery tank 7 is cooled to feed water after the temperature that needs, finally by pipeline 12 return carry out in the steam heating boiler 1 recycling.

The backwater of refining plant 3 generations uses just can for the leaching workshop 4 of postorder like this, and the backwater that leaches workshop 4 generations uses just can for the pre-press for extracting juice workshop 5 of postorder, the present invention efficiently solves original one side heat-energy losses, another side then is the problem of the deficiency of energy, whole proposal is rationally feasible, both can replenish the postorder workshop the heat supply deficiency, strengthened heat capacity, can eliminate the potential safety hazard that electric heater brings again, stop a large amount of heat-energy losses and waste.

The present invention not merely is applicable to steam to be the edible vegetable oil processing plant of thermal source, and also extending to all similarly is the processing plant of thermal source with steam.

Claims

1. steam backwater reutilization technology, it is characterized in that: the steam that produces from steam heating boiler (1) transfers to refining plant (3) successively through total steam pipe (2), leach workshop (4) and the pre-workshop (5) of pressing, steam is (3) in the refining plant, leaching the backwater that produces in workshop (4) and the heat supply transmission of pre-press for extracting juice workshop (5) is connected with recovery tank (7) by return pipe (6), (3) and leaching workshop (4) in the refining plant, leach and to arrange respectively between workshop (4) and the pre-press for extracting juice workshop (5) that first backwater is in charge of (8) and second backwater is in charge of (9), the return water temperature that comes out when refining plant (3) is higher than when leaching workshop (4) processing temperature, the backwater that comes out in refining plant (3) is in charge of (8) by first backwater and is entered leaching workshop (4) recycling, meanwhile, when the return water temperature that comes out when leaching workshop (4) was higher than pre-press for extracting juice workshop (5) processing temperature, the backwater that comes out in leaching workshop (4) was in charge of (9) by second backwater and is entered pre-press for extracting juice workshop (5) recycling.

2. steam backwater reutilization technology according to claim 1 is characterized in that: described first backwater is in charge of (8) and second backwater and is in charge of and is respectively equipped with control valve (10,11) on (9).

3. steam backwater reutilization technology according to claim 1, it is characterized in that: the backwater in the described recovery tank (7) finally returns in the steam heating boiler (1) recycling by pipeline (12).