CN205252581U - Acetone condensation recovery device - Google Patents

Abstract

The utility model belongs to the field of solvent recovery, and specifically discloses an acetone condensation recovery device, which comprises a first-level condenser, a second-level condenser, a third-level condenser and a receiving tank arranged up and down in sequence and connected through material pipelines; There is a solvent gas inlet on the tank, a nitrogen inlet on the receiving tank, and an outlet for recycled materials at the bottom of the side end of the receiving tank; a brine inlet is installed at the bottom of the third-stage condenser, and the brine inlet is connected to the brine tank through a brine pipe. It is also connected to the brine return port provided on the first-stage condenser through the brine pipe; there is a brine passage pipe between the first-stage condenser, the second-stage condenser and the third-stage condenser; a vent valve is provided on one end of the top surface of the receiving tank ; The bottom of one end of the three-stage condenser is provided with a condenser drain port, and the bottom of the receiving tank is provided with a drain port of the receiving tank. The utility model has the advantages of simple structure, high recovery rate and low cost.

Description

Acetone condensation recovery unit

technical field

The utility model belongs to the field of solvent recovery, in particular to an acetone condensation recovery device.

Background technique

A solvent is a liquid that can dissolve gases, solids, and liquids to form a homogeneous mixture. It is an auxiliary material in the production process, but it plays an indispensable role in the production process. Due to the complex characteristics and variety of solvents, special equipment and processes need to be designed for recycling, so the recycling cost is high. Most enterprises do not pay attention to the recycling of solvents, resulting in excessive consumption of solvents and low utilization of solvents when producing the same product. The waste of raw materials is serious and the production cost is high; at the same time, the solvent is directly treated as a waste product, which will have a great impact on the surrounding environment. The existing solvent recovery equipment and technology have low recovery rate and high cost, and it is difficult to achieve the purpose of saving energy and protecting the environment, which makes it difficult to promote solvent recovery.

Utility model content

The purpose of the utility model is to provide an acetone condensation recovery device with simple structure, high recovery rate and low cost.

In order to achieve the above object, the utility model adopts the following technical solutions: acetone condensation recovery device, including a first-level condenser, a second-level condenser, a third-level condenser and a receiving tank that are arranged up and down in sequence and communicated through material pipelines; There is a solvent gas inlet on the receiver, a nitrogen inlet on the receiving tank, and an outlet for recycled materials at the bottom of the side end of the receiving tank; a brine inlet is installed at the bottom of the third-stage condenser, and the brine inlet is connected to the brine tank through a brine pipe. It is also connected to the brine return port provided on the first-stage condenser through the brine pipe; there is a brine pipe between the first-stage condenser, the second-stage condenser and the third-stage condenser; a vent valve is provided on the top end of the receiving tank ; The bottom of one end of the three-stage condenser is provided with a condenser drain port, and the bottom of the receiving tank is provided with a drain port of the receiving tank.

Further, the bottom of the primary condenser is provided with an auxiliary material pipe connected to the top of the secondary condenser, and the bottom of the secondary condenser is provided with an auxiliary material pipe connected to the top of the tertiary condenser.

Further, the auxiliary material pipe adopts a straight pipe and is arranged vertically.

Further, the top of the primary condenser is provided with a waste gas venting valve.

Further, a receiver tank pressure gauge is provided at the vent valve; a nitrogen pressure gauge is provided at the nitrogen inlet.

Further, a brine pump is provided on the brine pipe.

Further, the first-stage condenser, the second-stage condenser, the third-stage condenser, the brine tank, and the brine pipe together constitute a brine circuit.

Compared with the prior art, the beneficial effects of the utility model are as follows: the acetone condensation recovery device includes a first-stage condenser, a second-stage condenser, a third-stage condenser and a receiving tank that are arranged up and down in sequence and communicated through material pipelines. The first-stage condenser is condensed to improve the recovery rate of the solvent; the receiving tank is provided with a nitrogen inlet, and the bottom of the side end of the receiving tank is provided with an outlet for the recycled material, and nitrogen is introduced to discharge the solvent from the outlet for the recycled material; the bottom of the third-stage condenser There is a brine inlet, which is connected to the brine tank through a brine pipe, and the brine tank is also connected to the brine return port on the first-stage condenser through a brine pipe to form a brine circuit, improve the utilization rate of materials, and save costs; There is a brine pipe between the condenser, the secondary condenser and the tertiary condenser to increase the utilization rate of brine; there is a vent valve on the top end of the receiving tank to avoid damage caused by excessive pressure in the receiving tank, and the vent valve It is installed on one end of the top surface of the receiving tank, which is convenient for operation and maintenance; the bottom of one end of the three-stage condenser is equipped with a condenser drain outlet, and the bottom of the receiving tank is equipped with a drain outlet of the receiving tank, so as to timely drain the condenser and the receiving tank to avoid impact Solvent recovery efficiency; the top of the primary condenser is equipped with a waste gas vent valve to avoid damage to equipment due to high pressure in the condenser and improve solvent recovery efficiency; the bottom of the primary condenser is equipped with auxiliary materials connected to the top of the secondary condenser The bottom of the second-stage condenser is equipped with an auxiliary material pipe connected to the top of the third-stage condenser, which can fully discharge the materials in the condenser, avoid waste of raw materials, and improve work efficiency; the auxiliary material pipe is straight and vertically arranged , the use of straight pipes is easy to manufacture, and the vertical setting can make the auxiliary material pipe discharge smoothly and improve work efficiency; a pressure gauge is set on the receiving tank to observe the pressure value of the receiving tank in time; a nitrogen pressure gauge is installed at the nitrogen inlet to observe the inlet The pressure of nitrogen gas is convenient for the operator to adjust the amount of nitrogen gas in time; the brine pipe is equipped with a brine pump, a first-stage condenser, a second-stage condenser, a third-stage condenser, a brine tank, a brine pipe and a brine pipe to form a brine circuit, improve the utilization rate and work efficiency of brine.

Description of drawings

Fig. 1 is the structural representation of the utility model.

detailed description

The acetone condensation recovery device, as shown in Figure 1, comprises a first-stage condenser 6, a second-stage condenser 11, a third-stage condenser 12 and a receiving tank 20 which are arranged up and down successively and communicated by a material pipeline 22, and the condensers are passed through The bracket 8 is connected, the receiving tank 20 is fixed on the ground through the pillar 19, and the volume of the receiving tank 20 is 300L; the primary condenser 6 is provided with a solvent gas inlet 5, and the receiving tank 20 is provided with a nitrogen inlet 14, and the side end surface of the receiving tank 20 is The bottom is provided with a recycled material outlet 15; the bottom of the third-stage condenser 12 is provided with a brine inlet 2, and the brine inlet 2 is connected to the brine tank 4 through the brine pipe 7, and the brine tank 4 is also set on the first-stage condenser 6 through the brine pipe 7 The brine return port 9 is connected; there is a brine through pipe 21 between the primary condenser 6, the secondary condenser 11 and the tertiary condenser 12, and a flange is provided on the brine through pipe 21, which is convenient for maintenance and disassembly ; One end of the top surface of the receiving tank 20 is provided with a vent valve 18; the bottom of one end of the third-stage condenser 12 is provided with a condenser drain port 1, and the bottom of the receiving tank 20 is provided with a receiving tank drain port 17. The bottom of the primary condenser 6 is provided with an auxiliary material pipe 23 connected to the top of the secondary condenser 11 , and the bottom of the secondary condenser 11 is provided with an auxiliary material pipe 23 connected to the top of the tertiary condenser 12 . The auxiliary material pipe 23 adopts a straight pipe and is arranged vertically. The top of the primary condenser 6 is provided with a waste gas venting valve 10 . The receiving tank 20 is provided with a pressure gauge 16 for the receiving tank; the nitrogen inlet 14 is provided with a nitrogen pressure gauge 13 . The brine pipe 7 is provided with a brine pump 3 . The primary condenser 6, the secondary condenser 11, the tertiary condenser 12, the brine tank 4, the brine pipe 21 and the brine pipe 7 together constitute a brine loop. Each import and export can adopt valve among the utility model.

During work, the acetone gas to be recovered enters the primary condenser 6 from the solvent gas inlet 5 for primary condensation, and then the acetone enters the secondary condenser 11 and the tertiary condenser 12 through the material pipeline 22 for further condensation, and after three condensations , the solvent enters the receiving tank 20, feeds nitrogen gas, and discharges the solvent from the reclaimed material outlet 15 for reuse; brine enters the brine pipe 7 from the brine tank 4, and enters the brine pipe 7 from the brine inlet 2 under the action of the brine pump 3. The first-stage condenser 12 passes through the second-stage condenser 11 and the first-stage condenser 6 successively through the brine conduit 21, then discharges from the brine return port 9, and returns to the brine tank 4 through the brine pipe 7; The pressure in the receiving tank 20 is observed and vented through the vent valve 18 .

Claims (7)

1. Acetone condensation recovery device, characterized in that: it includes a first-stage condenser, a second-stage condenser, a third-stage condenser and a receiving tank that are arranged up and down in sequence and connected through material pipelines; the first-stage condenser is provided with a solvent gas inlet , the receiving tank is provided with a nitrogen inlet, and the bottom of the side end of the receiving tank is provided with an outlet for recycled materials; the bottom of the third-stage condenser is provided with a brine inlet, which is connected to the brine tank through a brine pipe, and the brine tank is also connected to the first-stage condenser through a brine pipe. The brine return port set on the condenser is connected; there is a brine pipe between the primary condenser, the secondary condenser and the tertiary condenser; a vent valve is provided on the top end of the receiving tank; There is a drain outlet for the condenser, and a drain outlet for the receiving tank at the bottom of the receiving tank. 2. The acetone condensation recovery device as claimed in claim 1, characterized in that: the bottom end of the primary condenser is provided with an auxiliary material pipe connected to the top of the secondary condenser, and the bottom end of the secondary condenser is provided with an auxiliary material pipe connected to the top of the secondary condenser. The auxiliary material pipe connected to the top of the three-stage condenser. 3. The acetone condensation recovery device according to claim 2, characterized in that: the auxiliary material pipe adopts a straight pipe and is arranged vertically. 4. The acetone condensation recovery device according to claim 3, characterized in that: the top of the primary condenser is provided with a waste gas venting valve. 5. The acetone condensation recovery device according to claim 4, characterized in that: the receiving tank is provided with a receiving tank pressure gauge; the nitrogen inlet is provided with a nitrogen pressure gauge. 6. The acetone condensation recovery device according to claim 5, characterized in that: the brine pipe is provided with a brine pump. 7. The acetone condensation recovery device as claimed in claim 6, characterized in that: said primary condenser, secondary condenser, tertiary condenser, brine tank, brine pipe and brine conduit jointly form a brine circuit.