CN213032501U - Polyether production is with desalination refining plant - Google Patents
Polyether production is with desalination refining plant Download PDFInfo
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- CN213032501U CN213032501U CN202021811592.2U CN202021811592U CN213032501U CN 213032501 U CN213032501 U CN 213032501U CN 202021811592 U CN202021811592 U CN 202021811592U CN 213032501 U CN213032501 U CN 213032501U
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Abstract
A desalting and refining device for polyether production comprises a kettle body, wherein a feed inlet and a discharge outlet are formed in the kettle body, a stirring assembly, a wall scraping assembly and a temperature control assembly are arranged on the kettle body, the stirring assembly comprises a motor, a rotating shaft and a rotating support, and a stirring net is arranged in the rotating support; the wall scraping assembly comprises a side scraping assembly and a bottom scraping assembly, the side scraping assembly comprises a spring and a first scraping plate, the bottom scraping assembly comprises a jack and a second scraping plate, and a control switch for controlling the jack to work is installed on the outer wall of the kettle body; the utility model has the advantages that: high stirring efficiency, difficult adhesion of phosphate crystals, accurate and convenient temperature control and simple cleaning.
Description
Technical Field
The utility model belongs to the technical field of refining plant technique and specifically relates to a polyether production is with desalination refining plant.
Background
The polyether polyol producing process includes ring opening polymerization of polyhydric alcohol and epoxy propane or epoxy ethane in the presence of KOH as catalyst to produce coarse polyether, neutralization of the coarse polyether with water and phosphoric acid, dewatering and crystallization to eliminate alkali catalyst and side product, and the refining step is short.
In the refining process, the temperature of the original refining kettle is controlled by introducing circulating water and steam into a coil pipe of the refining kettle to adjust the temperature, the coil pipe is coiled in the refining kettle and has a large area, a phosphoric acid neutralization process is adopted to generate a large amount of phosphate crystals which can be attached to the coil pipe of the refining kettle, the phosphoric acid neutralization of the next batch of products can be influenced by the phosphate crystals, the phosphate crystals are hydrolyzed and crystallized again along with the neutralization reaction of the next batch, the neutralization process is extremely difficult to control, the product quality is unstable, the sodium-potassium value and the acid value of the produced polyether polyol are often high, the refining kettle is required to be cleaned frequently, the labor intensity is increased, and the productivity is influenced; when the polyether is refined by the existing refining kettle, the temperature is not accurately controlled, the refining quality of the polyether is influenced, and meanwhile, phosphate crystals in the kettle body are difficult to clean, so that time and labor are wasted.
SUMMERY OF THE UTILITY MODEL
To the not enough of prior art existence, the utility model aims to provide a polyether production is with desalination refining plant, the clearance is convenient, and accuse temperature is accurate.
The technical scheme of the utility model is realized like this: the utility model provides a polyether production is with desalination refining plant, includes the cauldron body, feed inlet and discharge gate have been seted up on the cauldron body, its characterized in that: the stirring assembly comprises a motor arranged at the upper end of the kettle body, a rotating shaft arranged in the kettle body and controlled by the motor to rotate, and a rotating support arranged on the rotating shaft, wherein the output end of the motor penetrates into the kettle body and is fixedly connected with one end of the rotating shaft, and a stirring net is arranged in the rotating support; the wall scraping assembly comprises a side scraping assembly and a bottom scraping assembly, the side scraping assembly comprises a spring and a first scraping plate, the spring is fixed on one side of the rotating support, which faces the inner wall of the kettle body, two ends of the spring are fixedly connected with the rotating support and the first scraping plate respectively, and the first scraping plate is in contact with the inner wall of the kettle body; the bottom scraping component comprises a jack fixed at the bottom end of the rotating support and a second scraper blade controlled by the jack to move up and down, the second scraper blade is in contact with the bottom wall of the kettle body and is matched with the bottom of the kettle body in shape, and a control switch used for controlling the jack to work is installed on the outer wall of the kettle body.
Preferably: the subassembly is scraped to side still includes a fixed cylinder and a movable cylinder, the movable cylinder is located inside the fixed cylinder, the spring is located inside the movable cylinder, the one end of fixed cylinder is fixed on rotating the support, the one end of movable cylinder is fixed on first scraper blade, the movable cylinder horizontal slip in the fixed cylinder, all be equipped with the anticreep fixture block on movable cylinder and the fixed cylinder, the screens is avoided being deviate from in the fixed cylinder to the anticreep fixture block on the movable cylinder mutually supported the screens with the anticreep fixture block on the fixed cylinder.
Preferably: the number of the rotating supports is four, and the rotating supports are uniformly arranged around the rotating shaft in the circumferential direction at equal intervals.
Preferably: temperature control assembly includes air pump, air heater and intake pipe, air pump and air heater all install at cauldron external lateral wall, air heater and air pump intercommunication, the input and the atmosphere intercommunication of air pump, the intake pipe is installed on the internal roof of cauldron and is located the feed inlet top, wear out the one end of intake pipe the cauldron body communicates with air heater's the output of giving vent to anger, and a plurality of nozzle is evenly installed to this intake pipe bottom, and each nozzle all communicates with the intake pipe.
Preferably: still be provided with the washing subassembly on the cauldron body, it includes water storage box, water pump and inlet tube to wash the subassembly, water storage box and water pump fixed mounting are at cauldron body top, water pump and water storage box intercommunication, the both ends of inlet tube communicate with the output and the intake pipe of water pump respectively, install the stop valve on the inlet tube.
The utility model has the advantages that: (1) through the arrangement of the wall scraping assembly, during stirring, the motor drives the rotating shaft to rotate to drive the rotating bracket to rotate, so as to drive the side scraping assembly and the bottom scraping assembly to rotate, the phosphate crystals on the inner side wall of the kettle body are scraped by the rotation of the first scraper of the side scraping assembly and the inner side wall of the kettle body in contact, so that the phosphate crystals are prevented from being attached to the side wall of the kettle body, and the phosphate crystals on the bottom wall of the kettle body are scraped by the rotation of the second scraper of the bottom scraping assembly and the inner bottom wall of the kettle body in contact, so that the phosphate crystals are prevented from; the phosphate crystals are prevented from being adhered to the inside of the kettle body, the inside of the kettle body is ensured to be clean, the kettle body is convenient to clean, and the working efficiency is improved.
(2) Through the arrangement of the temperature control assembly, the air pump drives air to enter the air heater to heat the air, the heated air enters the inlet pipe and is sprayed onto the material in the kettle body through the nozzle, the high-temperature air is sprayed into the kettle body to heat and control the temperature of the material, the temperature control is accurate, the operation is convenient, redundant heating pipes are not needed to be adopted to easily adsorb phosphate crystals, and meanwhile, the material can be further stirred in a gas spraying mode to improve the production efficiency; the air inlet pipe is arranged above the feeding hole, so that the polyether is not easy to contact with the air inlet pipe during feeding, phosphate crystals cannot be adsorbed on the air inlet pipe, and the trouble of cleaning is avoided.
(3) Through the setting of washing the subassembly, when needs wash, open the stop valve, carry the water in with the water storage box through the water pump and get into the inlet tube and enter into the air inlet pipe, water and air mixing spout in the lump from the nozzle in the lump, wash the cauldron internal, the while control motor drives the stirring subassembly and rotates and wash comprehensively, washs conveniently, completely.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
FIG. 1 is a schematic view of the overall structure of an embodiment of the present invention;
FIG. 2 is an enlarged schematic view at A in FIG. 1;
FIG. 3 is a schematic structural view of a temperature control assembly according to an embodiment of the present invention;
the examples in the figure are: 1. the cauldron body, 2, the feed inlet, 3, the discharge gate, 4, the motor, 5, the rotation axis, 6, the rotation support, 7, the stirring net, 8, first scraper blade, 9, the spring, 10, the jack, 11, the second scraper blade, 12, control switch, 13, the fixed cylinder, 14, the movable cylinder, 15, anticreep fixture block, 16, accuse temperature subassembly, 161, the air pump, 162, air heater, 163, the intake pipe, 164, the nozzle, 17, wash the subassembly, 171, the water storage box, 172, the water pump, 173, the inlet tube, 174, the stop valve.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Example 1
As shown in fig. 1-2, the utility model discloses a desalting refining device for polyether production, including the kettle body 1, the kettle body 1 is last to have seted up feed inlet 2 and discharge gate 3, in the utility model discloses a specific embodiment, feed inlet 2 sets up the feeding that is used for the kettle body 1 on the lateral wall of kettle body 1, discharge gate 3 sets up the ejection of compact that is used for the material on the bottom wall of kettle body 1, be provided with stirring subassembly, scrape wall subassembly and accuse temperature subassembly 16 on the kettle body 1, stirring subassembly includes through the fixed mounting of screw motor 4 in kettle body 1 upper end, set up in kettle body 1 and receive motor 4 control rotation axis 5 and welded fastening on rotation axis 5's rotating support 6, the output of motor 4 penetrates kettle body 1 inside and rotating shaft 5's one end welded fastening, be fixed with stirring net 7 in rotating support 6; the wall scraping assembly comprises a side scraping assembly and a bottom scraping assembly, the side scraping assembly comprises a spring 9 and a first scraping plate 8, the spring 9 is fixed on one side of the rotating support 6, which faces the inner wall of the kettle body 1, two ends of the spring 9 are respectively fixedly connected with the rotating support 6 and the first scraping plate 8, and the first scraping plate 8 is in contact with the inner wall of the kettle body 1; the bottom scraping component comprises a jack 10 fixed at the bottom end of the rotating support 6 and a second scraping plate 11 controlled by the jack 10 to move up and down, the second scraping plate 11 is in contact with the bottom wall of the kettle body 1 and is matched with the bottom wall of the kettle body 1 in shape, and a control switch 12 used for controlling the jack 10 to work is installed on the outer wall of the kettle body 1.
Through the technical scheme, the motor drives the rotating shaft to rotate to drive the rotating bracket to rotate during stirring through the arrangement of the wall scraping component, so that the side scraping component and the bottom scraping component are driven to rotate, the phosphate crystals on the inner side wall of the kettle body are scraped through the rotation of the first scraper blade of the side scraping component and the contact with the inner side wall of the kettle body, the phosphate crystals are prevented from being attached to the side wall of the kettle body, the phosphate crystals on the bottom wall of the kettle body are scraped through the rotation of the second scraper blade of the bottom scraping component and the contact with the inner bottom wall of the kettle body, and the phosphate crystals are prevented from being attached; the phosphate crystals are prevented from being adhered to the inside of the kettle body, the inside of the kettle body is ensured to be clean, the kettle body is convenient to clean, and the working efficiency is improved.
Wherein, the material can be further dispersed by the arrangement of the stirring net, so that the uniformity in refining is improved; the rotating support is connected with the first scraper plate through a spring, the first scraper plate is enabled to elastically move, the first scraper plate is enabled to be close to the inner wall of the kettle body under the action of the elastic force of the spring, the effect of preventing phosphate crystals from being adhered to the side wall of the kettle body by scraping is ensured, and the phenomenon that the kettle body is damaged due to the fact that the first scraper plate and the kettle body are too close to each other is avoided; when stirring, make and leave the clearance between second scraper blade and the cauldron body diapire, avoid rotating the in-process second scraper blade cauldron body and scrape brokenly, when wasing, through control switch control jack work, the jack drives the second scraper blade and moves down and presses close to cauldron body diapire, drives the second scraper blade simultaneously and rotates, scrapes cauldron body diapire, but the clearance between adjustable control second scraper blade and the cauldron body diapire, and control is convenient, guarantees the clearance effect.
In this embodiment, the subassembly is scraped to side still includes a fixed section of thick bamboo 13 and a movable section of thick bamboo 14, a movable section of thick bamboo 14 is located inside a fixed section of thick bamboo 13, spring 9 is located inside a movable section of thick bamboo 14, the one end of a fixed section of thick bamboo 13 is fixed on rotating bracket 6, the one end of a movable section of thick bamboo 14 is fixed on first scraper blade 8, a movable section of thick bamboo 14 is the horizontal slip in a fixed section of thick bamboo 13, all be equipped with anticreep fixture block 15 on a movable section of thick bamboo 14 and the fixed section of thick bamboo 13, anticreep fixture block 15 on the movable section of thick bamboo 14 and the anticreep fixture block 15 on the fixed section of thick bamboo 13 mutually support the screens and avoid.
Through the technical scheme, through the setting of a movable section of thick bamboo and a fixed section of thick bamboo, carry out the cladding with the spring, avoid material and spring contact difficult clearance in the course of the work, improve the life of spring, restrict first scraper blade simultaneously, avoid it to drive the spring bending at the rotation in-process and make and leave the gap influence between first scraper blade slope and the cauldron body lateral wall and scrape the effect, avoid the phosphate crystal body to adsorb, simultaneously through the setting of anticreep fixture block, the anticreep fixture block on a fixed section of thick bamboo and the movable section of thick bamboo blocks each other, avoid a movable section of thick bamboo to break away from in the fixed section of thick bamboo, guarantee the stability that first scraper blade scraped.
In this embodiment, the number of the rotating brackets 6 is four, and the rotating brackets 6 are uniformly arranged at equal intervals in the circumferential direction around the rotating shaft 5.
Through above-mentioned technical scheme, through a plurality of runing rest's setting, guarantee the degree of consistency of refined polyether, improve production quality, guarantee rotation axis pivoted stability.
Example 2
As shown in fig. 3, the difference between this embodiment and the above embodiments is that, in this embodiment, the temperature control assembly 16 includes an air pump 161, an air heater 162 and an air inlet pipe 163, the air pump 161 and the air heater 162 are both fixedly mounted on the outer side wall of the kettle 1, the air heater 162 is communicated with the air pump 161, an input end of the air pump 161 is communicated with the atmosphere, the air inlet pipe 163 is located inside the kettle 1, the air inlet pipe 163 is mounted on the inner top wall of the kettle 1 and located above the feed inlet 2, one end of the air inlet pipe 163 penetrates through the kettle 1 and is communicated with an air outlet end of the air heater 162, a plurality of nozzles 164 are uniformly mounted at the bottom of the air inlet pipe 163, and each nozzle 164 is communicated.
According to the technical scheme, air is driven by the air pump to enter the air heater to heat air, the heated air enters the inlet pipe and is sprayed onto the material inside the kettle body through the nozzle, the high-temperature air is sprayed into the kettle body to heat and control the temperature of the material, the temperature control is accurate, the operation is convenient, redundant heating pipes are not needed to be adopted to easily adsorb phosphate crystals, and meanwhile, the material can be further stirred in a gas spraying mode to improve the production efficiency; the air inlet pipe is arranged above the feeding hole, so that the polyether is not easy to contact with the air inlet pipe during feeding, phosphate crystals cannot be adsorbed on the air inlet pipe, and the trouble of cleaning is avoided.
In this embodiment, still be provided with on the cauldron body 1 and wash subassembly 17, wash subassembly 17 and include water storage tank 171, water pump 172 and inlet tube 173, water storage tank 171 and water pump 172 fixed mounting are at cauldron body 1 top, water pump 172 and water storage tank 171 intercommunication, the both ends of inlet tube 173 communicate with the output and the intake pipe 163 of water pump 172 respectively, install the stop valve 174 that is used for controlling the inlet tube 173 break-make on the inlet tube 173.
Through above-mentioned technical scheme, through the setting of wasing the subassembly, when needs wash, open the stop valve, through the water pump with the water transport in the water storage box get into the inlet tube and enter into the air inlet pipe, water and air mixing spout in the lump from the nozzle in the lump, wash the cauldron internal, the simultaneous control motor drives the stirring subassembly and rotates and wash comprehensively, washs convenience, complete.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. The utility model provides a polyether production is with desalination refining plant, includes the cauldron body, feed inlet and discharge gate have been seted up on the cauldron body, its characterized in that: the stirring assembly comprises a motor arranged at the upper end of the kettle body, a rotating shaft arranged in the kettle body and controlled by the motor to rotate, and a rotating support arranged on the rotating shaft, wherein the output end of the motor penetrates into the kettle body and is fixedly connected with one end of the rotating shaft, and a stirring net is arranged in the rotating support; the wall scraping assembly comprises a side scraping assembly and a bottom scraping assembly, the side scraping assembly comprises a spring and a first scraping plate, the spring is fixed on one side of the rotating support, which faces the inner wall of the kettle body, two ends of the spring are fixedly connected with the rotating support and the first scraping plate respectively, and the first scraping plate is in contact with the inner wall of the kettle body; the bottom scraping component comprises a jack fixed at the bottom end of the rotating support and a second scraper blade controlled by the jack to move up and down, the second scraper blade is in contact with the bottom wall of the kettle body and is matched with the bottom of the kettle body in shape, and a control switch used for controlling the jack to work is installed on the outer wall of the kettle body.
2. The desalting refining device for polyether production according to claim 1, wherein: the subassembly is scraped to side still includes a fixed section of thick bamboo and a movable section of thick bamboo, the movable section of thick bamboo is located inside the fixed section of thick bamboo, the spring is located inside the movable section of thick bamboo, the one end of a fixed section of thick bamboo is fixed on rotating the support, the one end of a movable section of thick bamboo is fixed on first scraper blade, the movable section of thick bamboo slides from side to side in the fixed section of thick bamboo, all be equipped with the anticreep fixture block on a movable section of thick bamboo and the fixed section of thick bamboo.
3. The desalting refining device for polyether production according to claim 1, wherein: the number of the rotating supports is four, and the rotating supports are uniformly arranged around the rotating shaft in the circumferential direction at equal intervals.
4. The desalting and refining device for polyether production according to any one of claims 1 to 3, characterized in that: temperature control assembly includes air pump, air heater and intake pipe, air pump and air heater all install at cauldron external lateral wall, air heater and air pump intercommunication, the input and the atmosphere intercommunication of air pump, the intake pipe is installed on the internal roof of cauldron and is located the feed inlet top, wear out the one end of intake pipe the cauldron body communicates with air heater's the output of giving vent to anger, and a plurality of nozzle is evenly installed to this intake pipe bottom, and each nozzle all communicates with the intake pipe.
5. The desalting refining device for polyether production according to claim 4, wherein: still be provided with the washing subassembly on the cauldron body, it includes water storage box, water pump and inlet tube to wash the subassembly, water storage box and water pump fixed mounting are at cauldron body top, water pump and water storage box intercommunication, the both ends of inlet tube communicate with the output and the intake pipe of water pump respectively, install the stop valve on the inlet tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021811592.2U CN213032501U (en) | 2020-08-26 | 2020-08-26 | Polyether production is with desalination refining plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021811592.2U CN213032501U (en) | 2020-08-26 | 2020-08-26 | Polyether production is with desalination refining plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213032501U true CN213032501U (en) | 2021-04-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021811592.2U Active CN213032501U (en) | 2020-08-26 | 2020-08-26 | Polyether production is with desalination refining plant |
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| Country | Link |
|---|---|
| CN (1) | CN213032501U (en) |
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- 2020-08-26 CN CN202021811592.2U patent/CN213032501U/en active Active
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