CN217368305U

CN217368305U - FEP collecting system

Info

Publication number: CN217368305U
Application number: CN202221041142.9U
Authority: CN
Inventors: 曾建章; 谢蔷薇; 龚胜利; 李�根; 邬昌波
Original assignee: Chongqing Xinfu Technology Co ltd
Current assignee: Chongqing Xinfu Technology Co ltd
Priority date: 2022-04-29
Filing date: 2022-04-29
Publication date: 2022-09-06
Anticipated expiration: 2032-04-29

Abstract

The utility model provides a FEP collecting system, including reation kettle, receive the silo, condense the bucket, reation kettle's bin outlet links to each other with receiving the silo through first pipeline, set up first on the first pipeline, the second valve, the bin outlet that receives the silo links to each other with condensing the bucket through the second pipeline, set gradually the third on this second pipeline, the fourth valve, first filter, condense the leakage fluid dram of bucket and link to each other with sewage discharge pipe through the third pipeline, set gradually the seventh valve on this third pipeline, the second filter, connect the fourth pipeline on the first pipeline, be located first, between the second valve, set up the fifth valve on this fourth pipeline, and downstream end links to each other with the second filter, connect the fifth pipeline on the second pipeline, be located the third, between the fourth valve, set up the sixth valve on this fifth pipeline, and downstream end links to each other with the second filter. The utility model has the advantages of being simple in structure and convenient in operation, guarantee operating personnel safety, in addition, can collect the FEP powder of different quality grades respectively, satisfy the actual demand of enterprise.

Description

FEP collecting system

Technical Field

The utility model relates to a chemical industry field, in particular to FEP collection system.

Background

The FEP copolymer is discharged from the high-pressure reaction kettle in the form of emulsion and enters a coagulation barrel to be completely demulsified to obtain FEP powder after being preliminarily filtered by a receiving tank, the molecular weight of the FEP powder is uniformly distributed, and a high-quality product is obtained after granulation. This FEP collection device has the following problems:

1. the FEP emulsion is transferred into a receiving tank, part of small molecule FEP copolymer is demulsified and floats on the surface of the emulsion and needs to be manually fished out, because the temperature of the FEP emulsion is high (about 100 ℃), operators are easily scalded, the labor intensity is high, and in addition, the fished out small molecule needs to be recycled and is easily polluted in the transfer process;

2. the FEP copolymer with small molecules is adhered to the inner walls of the high-pressure reaction kettle and the receiving groove, and is retained into the coagulation barrel through a pipeline after being washed by water, so that the quality of the FEP powder in the coagulation barrel is reduced;

therefore, how to design a safe and reliable collecting device capable of separately collecting FEP with different quality grades is a problem to be solved by those skilled in the art.

Disclosure of Invention

The utility model aims at prior art not enough, provide a FEP collecting system, its simple structure, convenient operation can avoid the manual work to drag for the material under high temperature environment, guarantee operating personnel safety, in addition, can collect the FEP powder of different quality grades respectively, satisfy the actual demand of enterprise.

The technical scheme of the utility model is that: an FEP collecting system comprises a reaction kettle, a receiving groove and a condensing barrel, wherein the receiving groove is positioned below the reaction kettle and above the condensing barrel, a first flushing nozzle is arranged in the reaction kettle, a discharge port of the reaction kettle is connected with the receiving groove through a first pipeline, a distributor is arranged at the downstream end of the first pipeline, a first valve and a second valve are arranged on the first pipeline, a second flushing nozzle is arranged in the receiving groove, the discharge port of the receiving groove is connected with the condensing barrel through a second pipeline, a third valve, a fourth valve and a first filter are sequentially arranged on the second pipeline, a liquid discharge port of the condensing barrel is connected with a sewage discharge pipe through a third pipeline, a seventh valve and a second filter are sequentially arranged on the third pipeline, the first pipeline is connected with a fourth pipeline, the fourth pipeline is positioned between the first valve and the second valve, a fifth valve is arranged on the fourth pipeline, and the downstream end of the fourth pipeline is connected with the second filter, and the second pipeline is connected with a fifth pipeline and is positioned between the third valve and the fourth valve, the fifth pipeline is provided with a sixth valve, and the downstream end of the fifth pipeline is connected with the second filter.

Preferably, the bottom of the receiving groove is conical, and the discharge outlet of the receiving groove is positioned at the low point of the bottom of the receiving groove.

Preferably, the second filter is a labyrinth filter.

Adopt above-mentioned technical scheme to have following beneficial effect:

1. the FEP collecting system comprises a reaction kettle, a receiving groove and a coagulation barrel, wherein the reaction kettle is used as a place for synthesizing the FEP copolymer, the receiving groove is used for reducing the FEP emulsion, the emulsion breaking amount of the FEP emulsion in the discharging process is reduced, the yield of high-quality FEP powder is improved, and the coagulation barrel is used for completely breaking the emulsion of the FEP emulsion and layering the FEP powder. The material receiving groove is positioned below the reaction kettle and above the condensation barrel, so that liquid-phase materials can be transferred to a downstream working section under the action of gravity, and the energy consumption is reduced. A first washing nozzle is arranged in the reaction kettle and used for washing the residual FEP powder, so that waste of the FEP powder or environmental pollution is avoided. The bin outlet of reation kettle links to each other with receiving the silo through first pipeline, and the downstream end of this first pipeline sets up the distributor, sets up first valve, second valve on the first pipeline, and FEP emulsion that copolymerization obtained in the reation kettle gets into receiving the silo through first pipeline in, and through the distributor dispersion speed reduction, reduces FEP emulsion breakdown phenomenon, avoids excessive FEP to separate in advance, guarantees the yield of high quality FEP powder. And a second flushing nozzle is arranged in the receiving groove and used for flushing residual FEP powder, so that waste of the FEP powder or environmental pollution is avoided. The discharge gate of receiving the silo links to each other with the condensation bucket through the second pipeline, sets gradually third valve, fourth valve, first filter on this second pipeline, promptly, in receiving the silo through the FEP emulsion after buffering, slowing down in the second pipeline gets into the condensation bucket, wherein the micromolecular copolymer of breakdown of emulsion is held back through first filter. The liquid discharge port of the coagulation barrel is connected with the sewage discharge pipe through a third pipeline, a seventh valve and a second filter are sequentially arranged on the third pipeline, FEP emulsion in an emulsified state enters the coagulation barrel, and through chemical emulsion breaking or physical emulsion breaking, FEP powder with uniform molecular weight distribution is located on the surface of a liquid phase to form layering, the liquid phase is discharged through the liquid discharge port, a small amount of carried FEP powder is intercepted by the second filter, and the liquid phase passing through the second filter is sent to a sewage treatment station for targeted treatment. Connect the fourth pipeline on the first pipeline, be located between first valve, the second valve, set up the fifth valve on this fourth pipeline, and the downstream end of fourth pipeline links to each other with the second filter, after FEP emulsion blowing finishes, utilize first washing terminals to wash reation kettle's inner wall, wash the FEP powder of adhesion on the inner wall, and through opening first valve, fifth valve, close the second valve, directly send the flush fluid to the second filter and filter, hold back micromolecule FEP wherein, the liquid phase is sent to sewage treatment station and is carried out the pertinence and handles. The second pipeline is connected with a fifth pipeline and located between the third valve and the fourth valve, the fifth pipeline is provided with a sixth valve, the downstream end of the fifth pipeline is connected with the second filter, the second flushing sprayer is used for flushing the inner wall of the material receiving tank, FEP powder adhered to the inner wall is flushed, the fourth valve is closed by opening the third valve and the sixth valve, flushing fluid is directly sent to the second filter for filtering, and the intercepted small molecular FEP is sent to the sewage treatment station for targeted treatment. Finally, high-grade FEP powder with uniform molecular weight distribution is obtained in the coagulation barrel, and small-molecular FEP powder is collected in the first filter and the second filter and is used as secondary FEP powder.

2. The bottom of the receiving groove is conical, and the discharge outlet of the receiving groove is positioned at the low point of the bottom of the receiving groove, so that the residual quantity of the FEP emulsion is reduced, and the yield of the high-grade FEP powder is improved.

The following further description is made with reference to the accompanying drawings and detailed description.

Drawings

Fig. 1 is a schematic connection diagram of the present invention.

In the attached drawing, 1 is a reaction kettle, 2 is a receiving groove, 3 is a condensation barrel, 4 is a first flushing nozzle, 5 is a distributor, 6 is a second flushing nozzle, 7 is a first filter, 8 is a second filter, 101 is a first pipeline, 102 is a second pipeline, 103 is a third pipeline, 104 is a fourth pipeline, 105 is a fifth pipeline, a is a first valve, b is a second valve, c is a third valve, d is a fourth valve, e is a fifth valve, f is a sixth valve, and g is a seventh valve.

Detailed Description

The utility model discloses in, do not mark equipment, the part of concrete structure or model select for use the equipment or the part of chemical industry field conventionality usually, do not mark the connected mode that connected mode or the manufacturer's suggestion that are chemical industry field conventionality usually of concrete connected mode.

Referring to fig. 1, a specific embodiment of an FEP collection system is shown. The FEP collecting system comprises a reaction kettle 1, a receiving groove 2 and a coagulation barrel 3, wherein the number of the reaction kettle, the receiving groove and the coagulation barrel can be one or more, and if the number of the reaction kettle, the receiving groove and the coagulation barrel is more than one, the reaction kettle, the receiving groove and the coagulation barrel are connected in parallel. The material receiving groove 2 is positioned below the reaction kettle 1 and above the condensation barrel 3. A first washing nozzle 4 is arranged in the reaction kettle 1, a discharge port of the reaction kettle 1 is connected with a receiving groove 2 through a first pipeline 101, a distributor 5 is arranged at the downstream end of the first pipeline 101, and a first valve a and a second valve b are arranged on the first pipeline 101. Set up second washing terminals 6 in the receiving tank 2, the bin outlet of receiving tank 2 links to each other with condensation bucket 3 through second pipeline 102, sets gradually third valve c, fourth valve d, first filter 7 on this second pipeline 102, and in this embodiment, the tank bottom of receiving tank 2 is the toper, and the bin outlet of receiving tank 2 is located the low point of the tank bottom of receiving tank. The liquid outlet of the condensation barrel 3 is connected with a sewage discharge pipe through a third pipeline 103, a seventh valve g and a second filter 8 are sequentially arranged on the third pipeline 103, and specifically, the second filter adopts a labyrinth filter. The first pipeline 101 is connected with a fourth pipeline 104 and is located between the first valve a and the second valve b, the fourth pipeline 104 is provided with a fifth valve e, the downstream end of the fourth pipeline 104 is connected with the second filter 8, the second pipeline 102 is connected with a fifth pipeline 105 and is located between the third valve c and the fourth valve d, the fifth pipeline 105 is provided with a sixth valve f, and the downstream end of the fifth pipeline 105 is connected with the second filter 8.

The utility model discloses a theory of operation does: after the raw materials in the reaction kettle are copolymerized, opening a first valve and a second valve to enable FEP emulsion obtained in the reaction kettle to enter a receiving tank through a first pipeline and a distributor, wherein emulsion-broken micromolecule FEP powder floats on the surface of the emulsion, opening a third valve and a fourth valve to enable the FPE emulsion carrying the micromolecule powder to be intercepted through a first filter and enter a coagulation barrel, after emulsion breaking is carried out through a chemical method or a physical method, the FEP powder with uniform molecular weight distribution floats on the surface of a liquid phase, opening a seventh valve, and discharging the liquid phase carrying a small amount of FEP powder to a sewage treatment station for treatment after the liquid phase carrying the FEP powder is intercepted through a second filter. After FEP emulsion phase separation is collected, utilize first washing terminals to wash reation kettle's inner wall, the FEP powder of adhesion on the inner wall washes away, and through opening first valve, the fifth valve, close the second valve, send the flush fluid directly to the second filter and filter, intercept micromolecule FEP wherein, the liquid phase is sent to the sewage treatment station and is carried out the pertinence and handle, utilize second washing terminals to wash the inner wall of receiving tank, wash the FEP powder of adhesion on the inner wall, and through opening the third valve, the sixth valve, close the fourth valve, directly send the flush fluid to the second filter and filter, intercept micromolecule FEP wherein, the liquid phase sends to the sewage treatment station and carries out the pertinence and handles. Finally, high-grade FEP powder with uniform molecular weight distribution is obtained in the coagulation barrel, and small-molecular FEP powder is collected in the first filter and the second filter and used as secondary FEP powder.

Claims

1. An FEP collection system, characterized by: comprises a reaction kettle (1), a material receiving groove (2) and a condensation barrel (3), wherein the material receiving groove (2) is positioned below the reaction kettle (1) and above the condensation barrel (3),

a first washing nozzle (4) is arranged in the reaction kettle (1), a discharge outlet of the reaction kettle (1) is connected with the receiving groove (2) through a first pipeline (101), a distributor (5) is arranged at the downstream end of the first pipeline (101), a first valve (a) and a second valve (b) are arranged on the first pipeline (101),

a second flushing nozzle (6) is arranged in the receiving groove (2), a discharge outlet of the receiving groove (2) is connected with the coagulation barrel (3) through a second pipeline (102), a third valve (c), a fourth valve (d) and a first filter (7) are sequentially arranged on the second pipeline (102),

a liquid outlet of the condensation barrel (3) is connected with a sewage discharge pipe through a third pipeline (103), a seventh valve (g) and a second filter (8) are sequentially arranged on the third pipeline (103),

the first pipeline (101) is connected with a fourth pipeline (104) which is positioned between the first valve (a) and the second valve (b), the fourth pipeline (104) is provided with a fifth valve (e), and the downstream end of the fourth pipeline (104) is connected with the second filter (8),

and the second pipeline (102) is connected with a fifth pipeline (105) and is positioned between the third valve (c) and the fourth valve (d), the fifth pipeline (105) is provided with a sixth valve (f), and the downstream end of the fifth pipeline (105) is connected with the second filter (8).

2. The FEP collection system of claim 1, wherein: the bottom of the receiving groove (2) is conical, and the discharge outlet of the receiving groove (2) is positioned at the low point of the bottom of the receiving groove.

3. The FEP collection system of claim 1, wherein: the second filter (8) is a labyrinth filter.