CN219595917U

CN219595917U - Pre-extraction device

Info

Publication number: CN219595917U
Application number: CN202321272338.3U
Authority: CN
Inventors: 周林杰; 周宗焱; 张宗领; 李其祥; 宋丙宜
Original assignee: Shandong Jushun Luhua New Material Co ltd
Current assignee: Shandong Jushun Luhua New Material Co ltd
Priority date: 2023-05-24
Filing date: 2023-05-24
Publication date: 2023-08-29
Anticipated expiration: 2033-05-24

Abstract

The utility model discloses a pre-extraction device, which comprises a tower body used for placing extraction water, wherein the upper end of the tower body is provided with a feeding device used for inputting slices subjected to pre-extraction reaction with the extraction water, the right end of the tower body is provided with a water outlet device used for outputting the extraction water, the lower end of the tower body is provided with a water inlet device used for inputting the extraction water, the bottom of the tower body is provided with a discharging pipeline used for outputting the slices subjected to pre-extraction reaction, and the periphery of the lower end of the tower body is paved with a steam jacket used for heating the tower body. The utility model solves the problem of poor effect of the traditional pre-extraction system in the prior art. The utility model has the advantages of good extraction effect, simple operation and the like.

Description

Pre-extraction device

Technical Field

The utility model relates to the field of extraction water treatment equipment, in particular to a pre-extraction device.

Background

The polymerization reaction is a reversible reaction, and the polymerization reaction runs in the reverse direction at the same time in the polymerization process, and the generated product contains 10% of monomers and oligomers, so that if the monomers and the oligomers are not removed, the downstream use is greatly influenced, the unit consumption of the product is increased, and the loss is brought to enterprises. Therefore, the extraction system is used for extracting monomers and oligomers in the product slices, so that the product quality is improved, the product consumption is reduced, and the method becomes a subject in our production.

Principle of extraction: the extraction is a process of extracting by countercurrent diffusion of high-temperature recovery condensed low-concentration extraction water or desalted water and a polymerization slice, and is mainly divided into two processes, wherein the upper part utilizes a principle of compatibility by means of the identification, the oligomer in the slice is extracted by utilizing a monomer solution, and the lower part is subjected to low-concentration recovery water or desalted water to extract the monomer, and the extracted water is sent to a recovery system for recovery and use after the extraction.

Pre-extraction: the pre-extraction is the first section of the extraction system, receives the slices from the grain cutting system, mainly utilizes the principle of compatibility to extract oligomers and a small amount of monomers in the slices, controls the water temperature for extraction within a certain range, has poor extraction effect due to low water temperature, can influence slice blanking due to high water temperature, and plays an important role in the extraction system.

At present, chinese patent discloses a novel extraction system in advance on net, including inlet unit and extraction device in advance, publication No. CN208948889U, its characterized in that: the water inlet device comprises a pipeline mixer which is respectively communicated with a water inlet pipeline, a charging tank and a transition water tank; the pre-extraction device comprises a pre-extraction tower and a pre-extractant circulating pool, and the pre-extraction tower is respectively communicated with the transition water pool and the pre-extractant circulating pool; the pre-extraction system also comprises a power conveying device for conveying materials in the charging tank, the transition water tank and the pre-extraction agent circulating tank. The similar compatibility principle is utilized to remove oil substances and impurities in the wastewater, reduce the damage of the oil substances and impurities to the extractant in the subsequent extraction process, improve the extraction efficiency of the extractant in the subsequent extraction process and prolong the service life of the extractant.

Although the novel pre-extraction system has the advantage of long service life, the extraction tower in the patent is not provided with a device for heating the extraction water in the extraction tower, so that the pre-extraction effect is poor.

Disclosure of Invention

The utility model provides a pre-extraction device with a good pre-extraction effect, which aims to solve the problem of poor effect of a traditional pre-extraction system in the prior art.

The traditional pre-extraction device comprises a tower body for placing extraction water, wherein the upper end of the tower body is provided with a feeding device for inputting slices subjected to pre-extraction reaction with the extraction water, the right end of the tower body is provided with a water outlet device for outputting the extraction water, the lower end of the tower body is provided with a water inlet device for inputting the extraction water, the bottom of the tower body is provided with a discharging pipeline for outputting the slices subjected to pre-extraction reaction, and the periphery of the lower end of the tower body is paved with a steam jacket for heating the tower body.

The steam jacket can adopt a jacket heat exchanger.

Preferably, the feeding device comprises a feed opening arranged at the top of the tower body, a feed pipe for inputting slices is longitudinally inserted into the feed opening, the outer wall of the feed pipe is welded with the feed opening, and a distributor for evenly distributing the slices in extraction water is arranged at the lower port of the feed pipe.

The distributor can adopt a steering wheel type distributor.

Preferably, the water outlet device comprises a water outlet arranged at the upper end of the right side of the tower body, a water outlet pipeline for outputting extraction water is transversely inserted in the water outlet, a filter screen for filtering the extraction water is welded on the right end opening of the water outlet pipeline, and a plurality of uniformly distributed annular meshes are arranged on the filter screen.

Preferably, the water inlet device comprises a water inlet arranged at the lower end of the tower body, and the water inlet is of an inverted cap shape.

Preferably, the steam jacket comprises a jacket sleeved on the periphery of the lower end of the tower body, and a steam pipeline for heating the tower body is wound in the jacket.

When the steam generator is in operation, the input end of the steam pipeline is connected with the output end of the steam generator, the output end of the steam pipeline is connected with the input end of the steam collector, the steam generator is turned on, and hot steam generated by the steam generator can enter the steam pipeline to heat the jacket and the tower body.

The feeding device has the functions that: the slices separated by the vibrating screen enter pre-extraction, the blanking pipe is inserted below the liquid level of extraction water in the tower body, the slices are directly immersed in the extraction water, the floating slices are prevented from blocking a water outlet pipeline, the phenomenon that the floating slices stay at the upper part in the tower body to form yellow particles is avoided, meanwhile, the distributor is arranged at the bottom of the blanking pipe, and the falling slices are uniformly distributed in the extraction water.

The water inlet device has the functions that: the extraction water that the pre-extraction set up is from the bottom of the tower body inflow, from the flow of top play water, and the water inlet is the cap that falls, lets the extraction water evenly get into the tower body from the water inlet all around, has guaranteed that extraction water and section convection current are abundant, has greatly improved the efficiency of extraction.

The water outlet device has the functions that: the outlet of the water outlet pipeline is provided with the annular mesh, so that the water passing area is large, the former filter element arrangement is changed, the water outlet is stable, frequent cleaning is not needed, and the system stability and the extraction effect are enhanced.

The steam jacket has the functions that: according to the utility model, the steam jacket is arranged on the periphery of the middle lower part of the tower body, the steam generator can be opened to heat the tower body through the steam pipeline under the condition of low pre-extraction temperature, the pre-extraction water temperature is improved, the pre-extraction effect is improved, and the risk of oligomer precipitation caused by low temperature can be avoided.

The utility model has the following beneficial effects: the pre-extraction water temperature is improved, the precipitation of oligomers is prevented, the product quality is improved, the extraction effect is good, and the operation is simple.

Drawings

Fig. 1 is a schematic structural view of the present utility model.

The device comprises a tower body 1, a discharging pipeline 2, a steam jacket 3, a discharging pipe 4, a distributor 5, a water outlet pipeline 6, a filter screen 7 and a water inlet 8.

Detailed Description

The technical scheme of the utility model is further specifically described below through examples and with reference to the accompanying drawings.

Examples: according to the pre-extraction device of the embodiment, further description is made of fig. 1, the pre-extraction device comprises a tower body 1 for placing extraction water, a slice feeding device for inputting slices to perform pre-extraction reaction with the extraction water is arranged at the upper end of the tower body 1, a water outlet device for outputting the extraction water is arranged at the right end of the tower body 1, a water inlet device for inputting the extraction water is arranged at the lower end of the tower body 1, a discharge pipeline 2 for outputting slices subjected to pre-extraction reaction is arranged at the bottom of the tower body 1, and a steam jacket 3 for heating the tower body 1 is paved at the periphery of the lower end of the tower body 1.

The feeding device comprises a feed opening formed in the top of the tower body 1, a feed pipe 4 for inputting slices is longitudinally inserted into the feed opening, the outer wall of the feed pipe 4 is welded with the feed opening, and a distributor 5 for evenly distributing the slices in extraction water is arranged at the lower port of the feed pipe 4.

The water outlet device comprises a water outlet which is arranged at the upper end of the right side of the tower body 1, a water outlet pipeline 6 for outputting extraction water is transversely inserted in the water outlet, a filter screen 7 for filtering the extraction water is welded on the right end opening of the water outlet pipeline 6, and a plurality of uniformly distributed annular meshes are arranged on the filter screen 7.

The water inlet device comprises a water inlet 8 which is arranged at the lower end of the tower body 1, and the water inlet 8 is of an inverted cap shape.

The steam jacket 3 comprises a jacket sleeved on the periphery of the lower end of the tower body, and a steam pipeline for heating the tower body is wound in the jacket.

The above embodiments are merely examples of the present utility model, but the present utility model is not limited thereto, and any changes or modifications made by those skilled in the art are included in the scope of the present utility model.

Claims

1. The utility model provides a pre-extraction device, includes tower body (1) that are used for placing extraction water, characterized by, tower body (1) upper end be equipped with be used for the input with extraction water carry out the sliced feed arrangement of pre-extraction reaction, tower body (1) right-hand member be equipped with be used for exporting extraction water's play water installation, tower body (1) lower extreme be equipped with be used for the water inlet means of input extraction water, tower body (1) bottom be equipped with be used for exporting through the sliced discharge pipeline (2) of pre-extraction reaction, tower body (1) lower extreme periphery lay be used for carrying out steam jacket (3) of heating to tower body (1).

2. The pre-extraction device according to claim 1, wherein the feeding device comprises a feed opening formed in the top of the tower body (1), a feed pipe (4) for inputting slices is longitudinally inserted into the feed opening, the outer wall of the feed pipe (4) is welded with the feed opening, and a distributor (5) for evenly distributing the slices in extraction water is arranged at the lower port of the feed pipe (4).

3. The pre-extraction device according to claim 1, wherein the water outlet device comprises a water outlet arranged at the upper end of the right side of the tower body (1), a water outlet pipeline (6) for outputting extraction water is transversely inserted in the water outlet, a filter screen (7) for filtering the extraction water is welded on the right port of the water outlet pipeline (6), and a plurality of uniformly distributed annular meshes are arranged on the filter screen (7).

4. The pre-extraction device according to claim 1, wherein the water inlet device comprises a water inlet (8) which is arranged at the lower end of the tower body (1), and the water inlet (8) is of an inverted cap shape.

5. The pre-extraction device according to claim 1, wherein the steam jacket (3) comprises a jacket sleeved on the periphery of the lower end of the tower body, and a steam pipeline for heating the tower body is wound in the jacket.