CN114225872A - Automatic pressure relief and explosion-proof type pressure relief system of reaction kettle - Google Patents
Automatic pressure relief and explosion-proof type pressure relief system of reaction kettle Download PDFInfo
- Publication number
- CN114225872A CN114225872A CN202111557954.9A CN202111557954A CN114225872A CN 114225872 A CN114225872 A CN 114225872A CN 202111557954 A CN202111557954 A CN 202111557954A CN 114225872 A CN114225872 A CN 114225872A
- Authority
- CN
- China
- Prior art keywords
- pressure relief
- pressure
- pipe
- reaction kettle
- cauldron body
- 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.)
- Pending
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/18—Stationary reactors having moving elements inside
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/0006—Controlling or regulating processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/0006—Controlling or regulating processes
- B01J19/002—Avoiding undesirable reactions or side-effects, e.g. avoiding explosions, or improving the yield by suppressing side-reactions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00049—Controlling or regulating processes
- B01J2219/00162—Controlling or regulating processes controlling the pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00049—Controlling or regulating processes
- B01J2219/00245—Avoiding undesirable reactions or side-effects
- B01J2219/00259—Preventing runaway of the chemical reaction
- B01J2219/00263—Preventing explosion of the chemical mixture
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00049—Controlling or regulating processes
- B01J2219/00245—Avoiding undesirable reactions or side-effects
- B01J2219/0027—Pressure relief
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
Abstract
The invention discloses an automatic pressure relief and explosion-proof type reaction kettle pressure relief system, and relates to the field of reaction kettle pressure relief. The invention comprises a kettle body, wherein a pressure relief pipe is arranged on one side of the top of the kettle body, a bracket is arranged on the outer side of the pressure relief pipe, a limiting sleeve is fixed on the top of the bottom end of the bracket, a sliding groove is arranged on the inner side of the limiting sleeve, a pressure sensor is arranged on the sliding groove, when the air pressure increase rate in a reaction kettle is greater than the exhaust rate of a pressure relief hole, the pressure relief pipe always compresses the spring to the limit and simultaneously extrudes the pressure sensor, the resistance value of the metal resistance strain gage on the pressure sensor is changed after the metal resistance strain gage is subjected to mechanical shape, thereby converting the signal into a digital signal to be transmitted to the operation panel, when the pressure sensor is kept in a pressed state for a long time, then operating panel opens the warning light automatically and sends out the police dispatch newspaper, reminds the staff, and the staff then opens the initiative pressure release pipe, keeps the pressure stability in the reation kettle, avoids reation kettle to be in high-pressure state for a long time, improves the security.
Description
Technical Field
The invention relates to the field of pressure relief of reaction kettles, in particular to an automatic pressure relief and explosion-proof pressure relief system of a reaction kettle.
Background
The general understanding of the reaction kettle is that a stainless steel container with physical or chemical reaction is subjected to structural design and parameter configuration according to different process condition requirements, and the design conditions, the process, the inspection, the manufacture and the acceptance are required to be based on related technical standards so as to realize the heating, evaporation, cooling and low-speed mixing reaction functions required by the process.
According to the search discovery, chinese patent No. 201922207097.4 discloses a reation kettle for chemical production of taking automatic pressure release function, it reduces reation kettle's pressure through setting up automatic pressure relief device, but this patent still has the problem, and it is ejecting with the pressure release ball through reation kettle internal pressure to connect the pressure release ball through the spring, it is not stable enough at the in-process of pressure release, simultaneously, when pressure increase rate is greater than the pressure release rate in the reation kettle, still can take place the too big condition of pressure, danger is big.
Disclosure of Invention
Based on the above, the invention aims to provide an automatic pressure relief and explosion-proof type reaction kettle pressure relief system, which solves the technical problems that the pressure relief is not stable enough, and when the pressure increase rate in a reaction kettle is greater than the pressure relief rate, the pressure is too high, and the danger is high.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides an automatic pressure release, explosion-proof type reation kettle pressure release system, includes the cauldron body, the pressure release pipe is installed to top one side of the cauldron body, the support is installed in the outside of pressure release pipe, the bottom top of support is fixed with the stop collar, the spout has been seted up to the inboard of stop collar, install pressure sensor on the spout, there is the roof inside top of stop collar through spring coupling, the bottom of roof is fixed with the slip pipe, and slip pipe sliding connection is intraductal in the pressure release, slip pressure release hole has been seted up to the surface below of slip pipe, the pressure release hole has been seted up to the surface of pressure release pipe.
Through adopting above-mentioned technical scheme, when atmospheric pressure growth rate in reation kettle is greater than pressure release hole exhaust rate greatly, then the pressure release pipe all the time with spring compression to limit, can extrude pressure sensor simultaneously, metal resistance foil gage on pressure sensor receives can produce the resistance change after mechanical shape, thereby turn into digital signal conduction to operating panel, when pressure sensor keeps receiving the extrusion state for a long time, then operating panel opens the warning light automatically and sends the police dispatch newspaper, remind the staff, the staff then opens initiative pressure release pipe, keep the pressure stability in the reation kettle, avoid reation kettle to be in high-pressure state for a long time, and the safety is improved.
Further, install the motor in the middle of the top of the cauldron body, the output of motor is connected with the (mixing) shaft that is located the internal portion of cauldron, install many puddlers on the (mixing) shaft, the initiative pressure relief pipe is installed to the top opposite side of the cauldron body, the discharging pipe is installed to the both sides of the cauldron body.
Through adopting above-mentioned technical scheme, when needs stir the internal material of cauldron, the staff opens the motor, and motor drive (mixing) shaft is rotatory, and it is rotatory to drive the puddler to stir the material, improve the homogeneity of material.
Further, install waste discharge pipe in the middle of the bottom of the cauldron body, the bottom plate is installed to the bottom of the cauldron body, just waste discharge pipe runs through the bottom plate, install the solenoid valve on the waste discharge pipe, the inside below slope of the cauldron body sets up.
Through adopting above-mentioned technical scheme, improved the stability of the cauldron body, when needs wash the cauldron body, then to the internal green cucumber water of injecting of cauldron, open the motor, the drive (mixing) shaft take the wax gourd puddler to drive the clear water rotatory, wash the cauldron body to discharge through the exhaust waste pipe.
Further, the surface mounting of the cauldron body has operating panel, the warning light is installed to one side top of the cauldron body, operating panel respectively with pressure sensor, motor, warning light electric connection.
Furthermore, the top plate is connected in a sliding groove in the inner wall of the limiting sleeve in a sliding mode through a sliding rod, and the sliding rod is matched with the sliding groove.
Through adopting above-mentioned technical scheme, the stability of roof has been uprightly heightened to improve the stability of sliding tube, made things convenient for the cauldron body to carry out stable pressure release, improved the security.
Furthermore, the level of the pressure relief hole is lower than that of the limiting sleeve, and the level of the pressure relief hole is higher than that of the sliding pressure relief hole by the height.
Through adopting above-mentioned technical scheme, after reation kettle internal pressure was too big, atmospheric pressure can be with roof jack-up, and the slide bar of roof both sides is located the spout, therefore the roof can be stable slide from top to bottom, and after slip pressure release hole and pressure release hole overlapped, high-pressure gas just can discharge through the pressure release hole, avoids the pressure release operation of stop collar influence pressure release hole.
Furthermore, the slide bars are provided with a plurality of slide bars, the slide bars are distributed on the outer side of the top plate in an annular array shape, and the diameter of the top plate is larger than that of the pressure relief pipe.
In summary, the invention mainly has the following beneficial effects:
1. according to the invention, the pressure relief pipe, the pressure relief hole, the limiting sleeve, the sliding groove, the spring, the pressure sensor, the sliding pipe and the sliding pressure relief hole are arranged at the top of the kettle body, when the internal pressure of the reaction kettle is overlarge, the top plate can be jacked up by air pressure, the sliding rods at two sides of the top plate are positioned in the sliding groove, so that the top plate can stably slide up and down, and after the sliding pressure relief hole is overlapped with the pressure relief hole, high-pressure gas can be discharged through the pressure relief hole, thereby completing normal pressure relief of the reaction kettle;
2. the pressure sensor is arranged in the limiting sleeve, the pressure sensor adopts a piezoresistive pressure sensor, when the air pressure increase rate in the reaction kettle is greater than the exhaust rate of the pressure relief hole, the pressure relief pipe always compresses the spring to the limit, the pressure sensor can be extruded at the same time, when a metal resistance strain gauge on the pressure sensor is subjected to mechanical shape, resistance value change can be generated, the resistance value change is converted into a digital signal to be transmitted to the operation panel, when the pressure sensor is kept in the extruded state for a long time, the operation panel automatically turns on the alarm lamp to give an alarm to remind a worker, the worker turns on the active pressure relief pipe to keep the pressure in the reaction kettle stable, the reaction kettle is prevented from being in a high-pressure state for a long time, and the safety is improved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic sectional view of the autoclave body according to the present invention;
FIG. 3 is an enlarged view of A in FIG. 2 according to the present invention;
fig. 4 is a partial structural schematic view of the sliding tube of the present invention.
In the figure: 1. a kettle body; 2. a base plate; 3. a discharge pipe; 4. an operation panel; 5. a support; 6. a pressure relief pipe; 601. a pressure relief vent; 7. a limiting sleeve; 701. a chute; 702. a spring; 703. a pressure sensor; 8. a sliding tube; 801. a top plate; 802. a slide bar; 803. a sliding pressure relief hole; 9. a motor; 10. an active pressure relief pipe; 11. a stirring rod; 12. a stirring shaft; 13. a waste discharge pipe; 14. an alarm light.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
The following describes an embodiment of the present invention based on its overall structure.
An automatic pressure relief and explosion-proof type pressure relief system of a reaction kettle is disclosed, as shown in fig. 1, 2, 3 and 4, comprising a kettle body 1, a pressure relief pipe 6 is installed on one side of the top of the kettle body 1, a support 5 is installed on the outer side of the pressure relief pipe 6, a stop collar 7 is fixed on the top of the bottom end of the support 5, a sliding groove 701 is opened on the inner side of the stop collar 7, a pressure sensor 703 is installed on the sliding groove 701, a top plate 801 is connected to the upper part of the inner part of the stop collar 7 through a spring 702, a sliding pipe 8 is fixed on the bottom of the top plate 801, the sliding pipe 8 is slidably connected in the pressure relief pipe 6, a sliding pressure relief hole 803 is opened below the outer surface of the sliding pipe 8, a pressure relief hole 601 is opened on the outer surface of the pressure relief pipe 6, when the air pressure increase rate in the reaction kettle is greater than the pressure relief hole exhaust rate, the top plate 801 on the top of the sliding pipe 8 compresses the spring 702 to the limit all the time, and extrudes the pressure sensor 703 at the same time, the metal resistance strain gage on pressure sensor 703 can produce the resistance value after receiving mechanical shape and change to turn into digital signal conduction to operating panel 4, when pressure sensor 703 keeps receiving the extrusion state for a long time, then operating panel 4 opens automatically warning light 14 and sends out the police dispatch newspaper, reminds the staff, and the staff then opens initiative pressure release pipe 10, keeps the pressure stability in the reation kettle, avoids reation kettle to be in high-pressure state for a long time, improves the security.
Referring to fig. 1 and 2, a motor 9 is installed in the middle of the top of a kettle 1, an output end of the motor 9 is connected with a stirring shaft 12 located inside the kettle 1, a plurality of stirring rods 11 are installed on the stirring shaft 12, an active pressure relief pipe 10 is installed on the other side of the top of the kettle 1, discharge pipes 3 are installed on two sides of the kettle 1, when materials in the kettle 1 need to be stirred, a worker turns on the motor 9, the motor 9 drives the stirring shaft 12 to rotate, the stirring rods 11 are driven to rotate, the materials are stirred, uniformity of the materials is improved, a waste discharge pipe 13 is installed in the middle of the bottom of the kettle 1, a bottom plate 2 is installed at the bottom of the kettle 1, the waste discharge pipe 13 penetrates through the bottom plate 2, an electromagnetic valve is installed on the waste discharge pipe 13, the lower portion inside the kettle 1 is obliquely arranged, stability of the kettle 1 is improved, when the kettle 1 needs to be cleaned, green melon water is injected into the kettle 1, the motor 9 is started, the wax gourd stirring rod 11 with the stirring shaft 12 is driven to drive clear water to rotate, the kettle body 1 is cleaned, and the clear water is discharged through the waste discharge pipe 13.
Referring to fig. 1, 2, 3 and 4, an operation panel 4 is installed on the outer surface of the kettle body 1, an alarm lamp 14 is installed above one side of the kettle body 1, the operation panel 4 is respectively electrically connected with the pressure sensor 703, the motor 9 and the alarm lamp 14, the top plate 801 is slidably connected in the sliding groove 701 on the inner wall of the limiting sleeve 7 through the sliding rods 802, the sliding rods 802 are adapted to the sliding groove 701, the plurality of sliding rods 802 are arranged on the outer side of the top plate 801 in an annular array shape, meanwhile, the diameter of the top plate 801 is larger than that of the pressure relief pipe 6, and the stability of the top plate 801 is improved, so that the stability of the sliding pipe 8 is improved, the kettle body 1 is convenient to perform stable pressure relief, and the safety is improved.
Referring to fig. 1, 2, 3 and 4, the level of the pressure relief hole 601 is lower than the level of the position limiting sleeve 7, the level of the pressure relief hole 601 is higher than the level of the sliding pressure relief hole 803, when the internal pressure of the reaction kettle is too high, the pressure pushes up the top plate 801, the sliding rods 802 on the two sides of the top plate 801 are located in the sliding grooves 701, so that the top plate 801 can stably slide up and down, when the sliding pressure relief hole 803 is overlapped with the pressure relief hole 601, the high-pressure gas can be discharged through the pressure relief hole 601, and the pressure relief operation of the pressure relief hole 601 is prevented from being influenced by the position limiting sleeve 7.
The implementation principle of the embodiment is as follows: firstly, the kettle body 1 is installed, and the power is switched on, when the pressure in the reaction kettle is too high, the air pressure can jack the top plate 801, the sliding rods 802 at the two sides of the top plate 801 are positioned in the sliding grooves 701, therefore, the top plate 801 can stably slide up and down, when the sliding pressure relief holes 803 are overlapped with the pressure relief holes 601, the high-pressure air can be discharged through the pressure relief holes 601, thereby completing the normal pressure relief of the reaction kettle, the pressure sensor 703 is installed in the limit sleeve 7, the pressure sensor 703 adopts a piezoresistive pressure sensor, when the air pressure increase rate in the reaction kettle is greatly larger than the exhaust rate of the pressure relief holes, the top plate 801 at the top of the sliding tube 8 always compresses the spring 702 to the limit, and simultaneously squeezes the pressure sensor 703, when the metal resistance strain gauge on the pressure sensor is mechanically deformed, the resistance is changed, thereby being converted into a digital signal to be conducted to the operation panel 4, when the pressure sensor 703 is kept in a squeezed state for a long time, the operation panel 4 automatically turns on the alarm lamp 14 to give an alarm to remind the worker, and the worker turns on the active pressure relief pipe 10 to keep the pressure in the reaction kettle stable.
Although embodiments of the present invention have been shown and described, it is intended that the present invention should not be limited thereto, that the particular features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples, and that modifications, substitutions, variations or the like, which are not inventive and may be made by those skilled in the art without departing from the principle and spirit of the present invention and without departing from the scope of the claims.
Claims (7)
1. The utility model provides an automatic pressure release, explosion-proof type reation kettle pressure release system, includes the cauldron body (1), its characterized in that: pressure release pipe (6) are installed to top one side of the cauldron body (1), support (5) are installed in the outside of pressure release pipe (6), the bottom top of support (5) is fixed with stop collar (7), spout (701) have been seted up to the inboard of stop collar (7), install pressure sensor (703) on spout (701), the inside top of stop collar (7) is connected with roof (801) through spring (702), the bottom of roof (801) is fixed with slip pipe (8), and slip pipe (8) sliding connection in pressure release pipe (6), slip pressure release hole (803) have been seted up to the surface below of slip pipe (8), pressure release hole (601) have been seted up to the surface of pressure release pipe (6).
2. The automatic pressure relief and explosion-proof type pressure relief system of the reaction kettle according to claim 1, which is characterized in that: install motor (9) in the middle of the top of the cauldron body (1), the output of motor (9) is connected with (mixing) shaft (12) that are located the cauldron body (1) inside, install many puddler (11) on (mixing) shaft (12), initiative pressure release pipe (10) are installed to the top opposite side of the cauldron body (1), discharging pipe (3) are installed to the both sides of the cauldron body (1).
3. The automatic pressure relief and explosion-proof type pressure relief system of the reaction kettle according to claim 1, which is characterized in that: install waste discharge pipe (13) in the middle of the bottom of the cauldron body (1), bottom plate (2) are installed to the bottom of the cauldron body (1), just waste discharge pipe (13) run through bottom plate (2), install the solenoid valve on waste discharge pipe (13), the slope of the inside below of the cauldron body (1) sets up.
4. The automatic pressure relief and explosion-proof type pressure relief system of the reaction kettle according to claim 2, which is characterized in that: the outer surface mounting of the cauldron body (1) has operating panel (4), warning light (14) are installed to one side top of the cauldron body (1), operating panel (4) respectively with pressure sensor (703), motor (9), warning light (14) electric connection.
5. The automatic pressure relief and explosion-proof type pressure relief system of the reaction kettle according to claim 1, which is characterized in that: the top plate (801) is connected in a sliding groove (701) in the inner wall of the limiting sleeve (7) in a sliding mode through a sliding rod (802), and the sliding rod (802) is matched with the sliding groove (701).
6. The automatic pressure relief and explosion-proof type pressure relief system of the reaction kettle according to claim 1, which is characterized in that: the horizontal height of the pressure relief hole (601) is lower than that of the limiting sleeve (7), and the horizontal height of the pressure relief hole (601) is higher than that of the sliding pressure relief hole (803).
7. The automatic pressure relief and explosion-proof type pressure relief system of the reaction kettle according to claim 5, wherein: the sliding rods (802) are arranged in a plurality of annular arrays and are distributed on the outer side of the top plate (801), and the diameter of the top plate (801) is larger than that of the pressure relief pipe (6).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202111557954.9A CN114225872A (en) | 2021-12-20 | 2021-12-20 | Automatic pressure relief and explosion-proof type pressure relief system of reaction kettle |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202111557954.9A CN114225872A (en) | 2021-12-20 | 2021-12-20 | Automatic pressure relief and explosion-proof type pressure relief system of reaction kettle |
Publications (1)
Publication Number | Publication Date |
---|---|
CN114225872A true CN114225872A (en) | 2022-03-25 |
Family
ID=80758748
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202111557954.9A Pending CN114225872A (en) | 2021-12-20 | 2021-12-20 | Automatic pressure relief and explosion-proof type pressure relief system of reaction kettle |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN114225872A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN115163890A (en) * | 2022-09-07 | 2022-10-11 | 江苏宏程重工有限公司 | Explosion-proof explosion venting device for electric heating pressure container |
CN115493078A (en) * | 2022-10-18 | 2022-12-20 | 广东广星气体有限公司 | Liquid nitrogen storage device of air separation process |
CN117823620A (en) * | 2024-03-04 | 2024-04-05 | 日照普惠动物营养科技有限公司 | High-precision pressure alarm |
-
2021
- 2021-12-20 CN CN202111557954.9A patent/CN114225872A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN115163890A (en) * | 2022-09-07 | 2022-10-11 | 江苏宏程重工有限公司 | Explosion-proof explosion venting device for electric heating pressure container |
CN115163890B (en) * | 2022-09-07 | 2022-12-09 | 江苏宏程重工有限公司 | Explosion-proof explosion venting device for electric heating pressure container |
CN115493078A (en) * | 2022-10-18 | 2022-12-20 | 广东广星气体有限公司 | Liquid nitrogen storage device of air separation process |
CN117823620A (en) * | 2024-03-04 | 2024-04-05 | 日照普惠动物营养科技有限公司 | High-precision pressure alarm |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN114225872A (en) | Automatic pressure relief and explosion-proof type pressure relief system of reaction kettle | |
CN116272819B (en) | Esterification reaction kettle for photoresist production | |
CN210005161U (en) | autoclave air pressure detection device | |
CN213872666U (en) | Pressure detection device for steam boiler | |
CN203651052U (en) | Powder press capable of preventing empty pressing of mold | |
CN209155831U (en) | A kind of explosion-proof high-pressure kettle | |
CN215464419U (en) | Pressure balance type laboratory reaction kettle with pressure feeding device | |
CN209257448U (en) | A kind of pressurizing unit of plastic raw materials | |
CN220767033U (en) | Pig feed processing fermenting installation | |
CN215963466U (en) | Automatic metering and feeding system for isophthalic acid | |
CN219334162U (en) | Pressure alarm device of reaction kettle | |
CN219377094U (en) | Safe chemical tank | |
CN210994257U (en) | Test tube stirrer for predicting explosive polymerization of chemical reaction | |
CN216465213U (en) | Anhydrous stemming extrusion forming device | |
CN103722770A (en) | Powder press capable of preventing empty pressing of dies | |
CN220345845U (en) | Lithium carbonate subsides extraction element | |
CN210646376U (en) | Chemical industry reation kettle with pressure early warning function | |
CN220737485U (en) | Reation kettle with audible and visual alarm function | |
CN215845489U (en) | Demoulding device for cold forging processing of metal products | |
CN215396779U (en) | Device for producing high nominal pressure PVC pipe by using common PVC mould | |
CN117213992B (en) | Pressure testing device of pressure vessel | |
CN212385889U (en) | Intelligent injection mold | |
CN209682733U (en) | Vulcanizing press is used in a kind of production of 3PE hot melt adhesive | |
CN216432440U (en) | Oven for DMC thawing | |
CN218459527U (en) | Reactor for producing corrosion inhibitor |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination |