CN213885624U - Methyl alcohol recovery device of dimethyl adipate dissolving kettle - Google Patents
Methyl alcohol recovery device of dimethyl adipate dissolving kettle Download PDFInfo
- Publication number
- CN213885624U CN213885624U CN202022437835.7U CN202022437835U CN213885624U CN 213885624 U CN213885624 U CN 213885624U CN 202022437835 U CN202022437835 U CN 202022437835U CN 213885624 U CN213885624 U CN 213885624U
- Authority
- CN
- China
- Prior art keywords
- water
- tank
- valve
- sealed tank
- dissolving
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The utility model provides a dimethyl adipate dissolves methyl alcohol recovery unit of cauldron, includes and dissolves the cauldron, dissolves the top of cauldron and is equipped with dog-house, atmospheric valve, sets up agitator, heat transfer coil pipe in dissolving the cauldron, still includes water-sealed tank, connecting tube, the top of water-sealed tank sets up blow-down pipe, filler pipe, the upper reaches end and the interior empty intercommunication of water-sealed tank of blow-down pipe, the vertical upwards extension of lower reaches end, and buckle 180, form the section of bending, the upper reaches end of filler pipe is used for linking to each other with the water source, and the lower reaches end is equipped with first valve with the interior empty intercommunication of water-sealed tank on this filler pipe, the bottom of water-sealed tank sets up the shower valve, the upper reaches end of connecting tube links to each other with the atmospheric valve of dissolving the cauldron, and the lower reaches end of connecting tube extends into the interior empty of water-sealed tank, is located the below of water seal liquid level. The utility model has the advantages of being simple in structure and convenient in operation, guaranteeing under the prerequisite that adipic acid thrown the material smoothly, can effectively retrieve dissolving kettle exhaust methyl alcohol, avoid environmental pollution, and improve the utilization ratio of raw materials.
Description
Technical Field
The utility model relates to a chemical industry field, in particular to dimethyl adipate dissolving kettle's methyl alcohol recovery unit.
Background
The chemical enterprises use continuous feeding of adipic acid and methanol to carry out esterification to produce dimethyl adipate. During the period that adipic acid is fed into the dissolving kettle, methanol is easy to vaporize, and the generated methanol vapor increases the pressure in the dissolving kettle, so that the adipic acid is prevented from smoothly entering the dissolving kettle, and even is difficult to feed. In order to ensure smooth feeding, an emptying valve of the dissolving kettle needs to be opened for pressure relief, so that methanol steam is released to the atmosphere, and environmental pollution is caused.
Disclosure of Invention
The utility model aims at the not enough of prior art, provide a dimethyl adipate dissolves methyl alcohol recovery unit of cauldron, its simple structure, convenient operation, under the prerequisite of guaranteeing that adipic acid throws the material smoothly, can effectively retrieve the methyl alcohol that dissolves the cauldron and discharge, avoid environmental pollution, and improve the utilization ratio of raw materials.
The technical scheme of the utility model is that: the utility model provides a dimethyl adipate dissolves methyl alcohol recovery unit of cauldron, includes and dissolves the cauldron, dissolves the top of cauldron and is equipped with dog-house, atmospheric valve, sets up agitator, heat transfer coil pipe in dissolving the cauldron, still includes water-sealed tank, connecting tube, the top of water-sealed tank sets up blow-down pipe, filler pipe, the upper reaches end and the interior empty intercommunication of water-sealed tank of blow-down pipe, the vertical upwards extension of lower reaches end, and buckle 180, form the section of bending, the upper reaches end of filler pipe is used for linking to each other with the water source, and the lower reaches end is equipped with first valve with the interior empty intercommunication of water-sealed tank on this filler pipe, the bottom of water-sealed tank sets up the shower valve, the upper reaches end of connecting tube links to each other with the atmospheric valve of dissolving the cauldron, and the lower reaches end of connecting tube extends into the interior empty of water-sealed tank, is located.
The water-sealed tank is a stainless steel tank.
And a second valve is arranged on the connecting pipeline.
The water-sealed tank is a vertical tank body, and the downstream end of the connecting pipeline is positioned at the bottom of the vertical tank body.
Adopt above-mentioned technical scheme to have following beneficial effect:
1. the methanol recovery device of the dimethyl adipate dissolving kettle comprises a dissolving kettle, a feed inlet and an emptying valve are arranged at the top of the dissolving kettle, a stirrer and a heat exchange coil are arranged in the dissolving kettle, wherein the feed inlet is used for feeding materials, the emptying valve is used for exhausting steam, the stirrer is used for uniformly mixing raw materials in the dissolving kettle, and the heat exchange coil is used for exchanging heat of the materials in the dissolving kettle. Still include water-sealed tank, connecting tube, the top of water-sealed tank sets up blow-down pipe, filler pipe. The upper reaches end of blow-down pipe and the interior empty intercommunication of water seal tank, the low reaches end is vertical extends up, and buckles 180, forms the section of bending, and the blow-down pipe is used for the insoluble gas in the evacuation water seal tank, and the low reaches end sets up to the section of bending, is guaranteeing under the carminative prerequisite smoothly, can effectively avoid external impurity, gets into the water seal tank along the blow-down pipe like the rainwater, avoids producing impurity, guarantees to retrieve the quality of the methyl alcohol that obtains. The water seal tank is characterized in that the upstream end of the water adding pipe is used for being connected with a water source, the downstream end of the water adding pipe is communicated with the inside of the water seal tank, a first valve is arranged on the water adding pipe, water can be added into the water seal tank through the water adding pipe by opening the first valve to form a liquid seal, and the water adding pipe is further used for supplementing water. The bottom of the water seal tank is provided with a pilot valve, and after a certain amount of methanol steam is dissolved in the water seal liquid, the pilot valve is opened for emptying the methanol water solution in the water seal tank and recovering the liquid methanol in the water seal tank. The upper reaches end of connecting tube links to each other with the atmospheric valve of dissolving the cauldron, the low reaches end of connecting tube extends into the interior of water seal tank, be located the below of water seal liquid level, the methanol steam that vaporization generated in the dissolving cauldron, through the atmospheric valve, the connecting tube gets into the interior of water seal tank, and arrange below the water seal liquid level in the water seal tank, methanol steam wherein is dissolved by the condensation, noncondensable gas wherein, like nitrogen gas, evacuation through the evacuation pipe of water seal tank, accomplish the separation, retrieve, effectively avoid the methanol evacuation to cause environmental pollution, can also effectively guarantee the safety in production plant area.
2. Be equipped with the second valve on the connecting tube, when the methanol-water in the water seal tank of needs unloading, temporarily close the second valve, treat methanol-water unloading back, and add water again through the filler pipe in the water seal tank, form the liquid seal back again to the low reaches end of connecting tube, reopen the second valve, utilize fresh water seal liquid to carry out the condensation, dissolve methanol steam, in the period of avoiding unloading methanol-water, dissolve the methanol steam evacuation that the cauldron produced.
3. The water seal tank 2 is a vertical tank body, the downstream end of the connecting pipeline 3 is positioned at the bottom of the vertical tank body, so that the absorption efficiency of methanol vapor can be effectively improved, the height of the water seal liquid level can be conveniently adjusted, and the actual requirements of enterprises can be effectively met.
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 dissolving kettle, 11 is a feed inlet, 12 is an emptying valve, 13 is a stirrer, 14 is a heat exchange coil, 2 is a water seal tank, 21 is an emptying pipe, 22 is a water adding pipe, 23 is a bending section, 24 is a guiding and leaching valve, 3 is a connecting pipeline, a is a first valve, and b is a second valve.
Detailed Description
The utility model discloses in, do not mark the device, the equipment of specific structure, adopt the conventional device or the equipment in chemical industry field usually, do not mark the installation, the connected mode that adopt the conventional installation in chemical industry field usually of specific installation, connected mode or install, connect according to the guide suggestion of producer.
Referring to fig. 1, a specific embodiment of a methanol recovery device of a dimethyl adipate dissolving tank is shown. The methanol recovery device of the dimethyl adipate dissolving kettle comprises a dissolving kettle 1, a feed port 11 and an emptying valve 12 are arranged at the top of the dissolving kettle 1, a stirrer 13 and a heat exchange coil 14 are arranged in the dissolving kettle 1, specifically, the dissolving kettle is arranged on a floor slab of a plant area in a suspension manner, and a heat exchange medium of the heat exchange coil is process steam generally. The device also comprises a water-sealed tank 2 and a connecting pipeline 3. The top of water-sealed tank 2 sets up blow-down pipe 21, filler pipe 22, the upper reaches end and the interior empty intercommunication of water-sealed tank 2 of blow-down pipe 21, the vertical upwards extension of low reaches end, and buckle 180, form the section of bending 23, the upper reaches end of filler pipe 22 is used for linking to each other with the water source, and the low reaches end is equipped with first valve an with the interior empty intercommunication of water-sealed tank 2 on this filler pipe 22, the bottom of water-sealed tank 2 sets up shower valve 24, and in this embodiment, the water-sealed tank adopts the stainless steel jar, and water-sealed tank 2 is the vertical jar of body, supports on the floor through the support, and is general, and the length (height) of the vertical jar of body is than big better, so makes things convenient for the height of manual regulation water-sealed liquid level, and to cooling, the dissolution efficiency of methyl alcohol steam higher. The upstream end of connecting tube 3 links to each other with dissolving kettle 1's atmospheric valve 12, and the downstream end of connecting tube 3 extends into the interior of water seal jar 2, is located the below of water seal liquid level, and in this embodiment, the downstream end of connecting tube 3 extends vertically downwards, is located the bottom of the vertical jar of body, and is specific, sets up second valve b on the connecting tube for open or close the connecting tube.
The utility model discloses a theory of operation does, at first utilize the filler pipe to add water to a take the altitude in the water seal tank, to the downstream end formation liquid seal of connecting tube, utilize the dog-house in succession to adding methyl alcohol, adipic acid in the dissolution kettle, and to the raw materials heating, the stirring, because of being heated the methyl alcohol steam and the noncondensable gas that produce in the dissolution kettle, like nitrogen gas, through blow-off valve, connecting tube, get into the lower part of water seal tank, exhaust methyl alcohol steam is condensed into liquid, and dissolves in the water seal liquid, noncondensable gas wherein is through blow-off pipe, evacuation to atmosphere. And after a certain amount of methanol is dissolved in the water seal liquid, closing the second valve, opening the guide shower valve, emptying the methanol water solution, recycling the methanol obtained after treatment as a raw material, then closing the guide shower valve, opening the first valve, adding water into the water seal tank to a certain height again, forming a liquid seal on the downstream end of the connecting pipeline, and opening the second valve again to recycle the methanol steam therein.
Claims (4)
1. The utility model provides a dimethyl adipate dissolving tank's methyl alcohol recovery unit, includes dissolving tank (1), and the top of dissolving tank (1) is equipped with dog-house (11), atmospheric valve (12), sets up agitator (13), heat transfer coil (14) in dissolving tank (1), its characterized in that: also comprises a water-sealed tank (2) and a connecting pipeline (3),
the top of the water-sealed tank (2) is provided with a vent pipe (21) and a water adding pipe (22), the upstream end of the vent pipe (21) is communicated with the hollow space of the water-sealed tank (2), the downstream end extends upwards vertically and is bent for 180 degrees to form a bending section (23),
the upstream end of the water adding pipe (22) is used for being connected with a water source, the downstream end of the water adding pipe is communicated with the inner space of the water seal tank (2), a first valve (a) is arranged on the water adding pipe (22),
the bottom of the water-sealed tank (2) is provided with a guide shower valve (24),
the upstream end of the connecting pipeline (3) is connected with an emptying valve (12) of the dissolving kettle (1), and the downstream end of the connecting pipeline (3) extends into the hollow space of the water seal tank (2) and is positioned below the water seal liquid level.
2. The methanol recovery device of the dimethyl adipate dissolving tank as claimed in claim 1, wherein: the water-sealed tank (2) is a stainless steel tank.
3. The methanol recovery device of the dimethyl adipate dissolving tank as claimed in claim 1, wherein: and a second valve (b) is arranged on the connecting pipeline (3).
4. The methanol recovery device of the dimethyl adipate dissolving tank as claimed in claim 1, wherein: the water-sealed tank (2) is a vertical tank body, and the downstream end of the connecting pipeline (3) is positioned at the bottom of the vertical tank body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022437835.7U CN213885624U (en) | 2020-10-28 | 2020-10-28 | Methyl alcohol recovery device of dimethyl adipate dissolving kettle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022437835.7U CN213885624U (en) | 2020-10-28 | 2020-10-28 | Methyl alcohol recovery device of dimethyl adipate dissolving kettle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213885624U true CN213885624U (en) | 2021-08-06 |
Family
ID=77115404
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022437835.7U Active CN213885624U (en) | 2020-10-28 | 2020-10-28 | Methyl alcohol recovery device of dimethyl adipate dissolving kettle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213885624U (en) |
-
2020
- 2020-10-28 CN CN202022437835.7U patent/CN213885624U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101113013A (en) | Method and device for preparing cupric oxide/cupric sulfate by reclaiming wiring board etching waste liquor | |
| CN105623861B (en) | A kind of glycerine esterification reaction unit | |
| CN213885624U (en) | Methyl alcohol recovery device of dimethyl adipate dissolving kettle | |
| CN104177325B (en) | A kind of apparatus and method preparing trioxymethylene | |
| CN201593028U (en) | Device used in benzyl alcohol continuous hydrolysis technique | |
| CN209685328U (en) | A kind of battery-level lithium carbonate crude product stirs cleaning device | |
| CN201545896U (en) | Device for reclaiming circuit board etching waste liquid and producing basic copper chloride | |
| CN208244724U (en) | A kind of pantolactone synthesis reactor | |
| CN106423027A (en) | Production device and production method for sodium dimethyl dithiocarbamate | |
| CN215462095U (en) | Alkali adding device for wool aldehyde refining | |
| CN106397289A (en) | Energy-saving environment-friendly sodium dimethyldithiocarbamate production device and production method | |
| CN207672129U (en) | A kind of wiring board vacuum etch device | |
| CN213762349U (en) | A solid-liquid separation equipment for sodium methoxide production | |
| CN218458662U (en) | Tail gas recycling device of sodium aluminate synthesis reaction kettle | |
| CN220026982U (en) | Dimethomorph synthesizer | |
| CN2471786Y (en) | Mould fermenting tank | |
| CN201411590Y (en) | Oxidation white liquor preparation system | |
| CN216538452U (en) | Continuous kettle type 2, 6-methylethylphenyl-azomethine production device | |
| CN211522070U (en) | Reaction system for producing chloroacetic acid by pressurization method | |
| CN109663467A (en) | A kind of aminating reaction object optimization device and method of ortho-aminobenzoic acid | |
| CN213493686U (en) | Hydroxyl ether reaction system | |
| CN104998540B (en) | A kind of sulfur recovery unit in low pressure, low concentration sulfurous gas | |
| CN104028178B (en) | The method of fortified water mechanics reactor mixed effect | |
| CN206474156U (en) | A kind of methyl bromoacetate reaction unit | |
| CN220969042U (en) | O-tert-butylcyclohexanol production system beneficial to environmental protection |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |