CN205133480U - Device is added with alkali to modified starch production - Google Patents

Abstract

An alkali adding device for the production of modified starch, comprising an alkali forming part, an alkali storing part and an alkali adding part, the alkali forming part includes an alkali refining tank, and an alkali liquor delivery pipe connected to the lower part of the alkali refining tank, and the alkali storing part includes an alkali The alkali storage tank connected with the liquid delivery pipe, the alkali addition part includes the alkali liquor intermediate tank, the alkali addition standpipe and the annular alkali addition pipe, the alkali addition standpipe is connected with the alkali liquor intermediate tank, and the annular alkali addition pipe is located in the starch milk tank and connected to the The alkali-adding standpipe is connected, and an alkali-adding hole is opened on the ring-shaped alkali-adding pipe. The utility model completes the addition of lye by an annular alkali adding pipe, which ensures the uniformity of lye addition and improves product quality; the design of the return pipe enables the overflowed lye to be recycled, avoiding the waste of raw materials ; This new type has the advantages of reasonable design and good effect of adding lye.

Description

Alkali adding device for modified starch production

technical field

The utility model relates to the technical field of starch modification, in particular to an alkali adding device for modified starch production.

Background technique

Starch is the main source of energy for humans and most animals, and it is one of the natural resources because it can be produced by photosynthesis of plants. However, there are many deficiencies in the use of natural starch, such as insoluble in cold water, easy aging of starch paste, poor film-forming properties of starch at low temperature, etc., which limit its use in jewelry, papermaking, chemical, textile and pharmaceutical industries. . Therefore, modified starch came into being.

Starch modification is generally carried out under alkaline conditions. In order to ensure that the pH value of starch modification is appropriate, it is necessary to add lye to the starch milk tank. The alkali adding device for modified starch in the prior art has the defects that the amount of alkali added is difficult to adjust and the addition of alkali solution is uneven.

Contents of the invention

The purpose of the utility model is to overcome the shortcomings in the prior art, and provide a modified starch production alkali adding device, the device first dissolves the solid alkali into a certain concentration of liquid alkali, then temporarily stores the alkali liquor, and finally The lye is evenly added into the starch milk tank, and the technical solution adopted is: an alkali adding device for the production of modified starch, including an alkali forming part, an alkali storing part and an alkali adding part, and the alkali forming part includes an alkali forming tank, The lye delivery pipe connected to the lower part of the alkali liquefaction tank, the alkali storage part includes an alkali storage tank connected with the lye delivery pipe, it is characterized in that: the alkali addition part includes an lye intermediate tank, an alkali addition Standpipe and annular alkali-adding pipe, the described alkali-adding vertical pipe is connected with the lye intermediate tank, the annular alkali-adding pipe is located in the starch milk tank and connected with the described alkali-adding vertical pipe, and the annular alkali-adding pipe is There is an alkali adding hole on the pipe, and an alkali quantity control valve is also arranged between the alkali adding standpipe and the intermediate tank of alkali liquid.

The technical solution of the utility model also includes: the alkali storage part further includes a filter and a delivery pump arranged between the alkali storage tank and the intermediate tank of alkali liquor.

The technical solution of the utility model also includes: the alkali storage part further includes a return pipe connecting the intermediate tank of alkali liquid and the alkali storage tank.

The technical scheme of the utility model also includes: the alkali-adding hole faces below the starch milk tank.

The beneficial effect of the utility model is that: the utility model completes the addition of lye by the ring-shaped lye adding pipe, which ensures the uniformity of lye addition and improves the product quality; the design of the return pipe enables the overflowed lye to be Recycling avoids the waste of raw materials; the new model has the advantages of reasonable design and good effect of adding lye.

Description of drawings

Accompanying drawing 1 is a front view of the utility model, and accompanying drawing 2 is a schematic structural view of an annular alkali-adding pipe, wherein 1 is a caustic soda tank, 2 is an lye delivery pipe, 3 is an alkali storage tank, 4 is a filter, and 5 is a delivery pipe. Pump, 6 is an lye intermediate tank, 7 is an alkali quantity control valve, 8 is a starch milk tank, 9 is an annular alkali-adding pipe, 10 is an alkali-adding hole, 11 is a return pipe, and 12 is an alkali-adding standpipe.

detailed description

Below in conjunction with accompanying drawing, the specific embodiment of the utility model is described. The utility model discloses an alkali adding device for production of modified starch. The device comprises an alkali forming part, an alkali storing part and an alkali adding part, and the alkali forming part comprises an alkali refining tank 1 and an alkali liquor connected to the lower part of the alkali refining tank 1 The delivery pipe 2 is provided with a flow control valve on the lye delivery pipe 2.

The alkali storage part includes an alkali storage tank 3 connected to the lye delivery pipe 2, and the lye in the alkali solution tank 1 is stirred evenly and the concentration meets the requirements, and is transported through the lye delivery pipe 2 to the alkali storage tank 3 for temporary storage. The soda storage tank 3 is also connected to the filter 4 and the transfer pump 5 through pipelines in sequence. After the control valve is opened, the lye is transported from the soda storage tank 3 to the lye intermediate tank 6 . The alkali storage part also includes the return pipe 11 connecting the lye intermediate tank 6 and the alkali storage tank 3, so that once the lye intermediate tank 6 overflows, the lye returns to the alkali storage tank 3 through the return pipe, avoiding the loss of raw materials. waste.

The alkali-adding part comprises the lye intermediate tank 6, the alkali-adding standpipe 12 and the ring-shaped alkali-adding pipe 9, the alkali-adding standpipe 12 is connected with the lye intermediate tank 6, and the alkali-adding standpipe 12 and the lye intermediate tank 6 are installed Alkali quantity control valve 7 is arranged, and annular alkali adding pipe 9 is located in starch milk tank 8 and is connected with alkali adding standpipe 12, has added alkali hole 10 on annular alkali adding pipe 12. For the convenience of adding lye, the lye-adding hole 10 is installed toward the inside of the starch milk tank 8 .

During use, the lye that meets the concentration requirements is transported from the soda tank 1 to the soda storage tank 3, and under the action of the delivery pump, it is transported from the soda storage tank 3 to the lye intermediate tank, and finally from the ring-shaped alkali addition pipe 9. Add alkali hole to starch milk.

Of course, the above descriptions are not limitations of the present utility model, and the present utility model is not limited to the above-mentioned examples. Changes, modifications, additions or replacements made by those of ordinary skill in the art within the essential scope of the present utility model also belong to Protection scope of the present utility model.

Claims (4)

1. an alkali adding device for modified starch production, comprising an alkali part, an alkali storage part and an alkali addition part, and the alkali part comprises an alkali tank, an lye delivery pipe connected to the bottom of the alkali tank, The alkali storage part includes an alkali storage tank connected with the lye delivery pipe, and it is characterized in that: the alkali addition part includes an lye intermediate tank, an alkali addition standpipe and an annular alkali addition pipe, and the alkali addition standpipe Connected with the lye intermediate tank, the annular alkali-adding pipe is located in the starch milk tank and is connected with the alkali-adding standpipe, an alkali-adding hole is opened on the annular alkali-adding pipe, and the alkali-adding standpipe An alkali quantity control valve is also arranged between the lye intermediate tank. 2. The alkali adding device for modified starch production according to claim 1, characterized in that: the alkali storage part also includes a filter and a delivery pump arranged between the alkali storage tank and the lye intermediate tank. 3. The alkali adding device for modified starch production according to claim 2, characterized in that: the alkali storage part also includes a return pipe connecting the intermediate tank of alkali liquor and the alkali storage tank. 4. The alkali adding device for modified starch production according to claim 1, characterized in that: the alkali adding hole faces below the starch milk tank.