CN215876436U

CN215876436U - Filter for preparing benzoic acid polyol ester

Info

Publication number: CN215876436U
Application number: CN202121522309.9U
Authority: CN
Inventors: 李本强; 彭檬
Original assignee: Wuhan Yikede Fine Chemical Co ltd
Current assignee: Wuhan Yikede Fine Chemical Co ltd
Priority date: 2021-07-05
Filing date: 2021-07-05
Publication date: 2022-02-22
Anticipated expiration: 2031-07-05

Abstract

The utility model provides a filter for preparing benzoic acid polyol ester, which comprises an input pipeline, a filtering pipeline, a baffle ring, a filter cylinder and a sealing assembly, wherein a liquid inlet hole communicated with the input pipeline is formed in the circumferential outer wall of the filtering pipeline, the baffle ring is fixedly arranged in the filtering pipeline, the baffle ring is arranged between the liquid inlet hole and the first opening end of the filtering pipeline, the interior of the filter cylinder is hollow, one end of the filter cylinder is open, a plurality of first filtering holes are formed in the closed end of the filter cylinder, a second filtering hole is formed in the circumferential outer wall of the filter cylinder, the closed end of the filter cylinder can be slidably inserted into the filtering pipeline through the second opening end of the filtering pipeline, and the closed end of the filter cylinder is abutted against the baffle ring and is in sealing connection with the baffle ring. The filter is mainly used for filtering solid particles in liquid raw materials during preparation of the polyol benzoate and improving the quality of the polyol benzoate.

Description

Filter for preparing benzoic acid polyol ester

Technical Field

The utility model relates to the technical field of filtering devices, in particular to a filter for preparing benzoic acid polyol ester.

Background

The polyol benzoate is a colorless transparent liquid, is tasteless, is mainly used as a plasticizer of an adhesive and a sealant, and can replace dibutyl phthalate and dioctyl phthalate; the preparation method has the characteristics of high plasticization efficiency, good compatibility, excellent stability, cold resistance, water resistance, oxidation resistance, light resistance, heat resistance, good electrical property, low price and the like, and liquid raw materials of the polyol benzoate are required to be conveyed to reaction equipment through a conveying pipeline during preparation.

For example, patent CN210800446U provides an anti-clogging chemical material conveying pipeline, which accelerates the flow of material by a piston mechanism, but has no filtering device, and can not filter unwanted solid particles or other impurities in the material, so that there may be a problem of low product precision in the subsequent product preparation process.

At present, in the process of preparing the polyol benzoate, a general conveying pipeline is similar to the above patent, a filtering device is not arranged in the pipeline, solid particles can be mixed in the liquid raw material of the polyol benzoate during preparation, and the quality of the polyol benzoate can be influenced if the solid particles are not removed during preparation of the polyol benzoate.

SUMMERY OF THE UTILITY MODEL

In view of this, it is necessary to provide a filter for preparing polyol benzoate, which solves the technical problem of lack of a filtering device in the existing pipeline transportation technology.

In order to achieve the technical purpose, the utility model provides a filter for preparing benzoic acid polyol ester, which comprises an input pipeline, a filtering pipeline, a baffle ring, a filter cylinder and a sealing component, wherein a liquid inlet hole communicated with the input pipeline is formed in the circumferential outer wall of the filtering pipeline, the baffle ring is fixedly arranged in the filtering pipeline, the baffle ring is arranged between the liquid inlet hole and the first opening end of the filtering pipeline, the filter cylinder is hollow and has an open end, a plurality of first filtering holes are formed in the closed end of the filter cylinder, a second filtering hole is formed in the circumferential outer wall of the filter cylinder, the closed end of the filter cylinder can be inserted in the filtering pipeline in a sliding manner through the second opening end of the filtering pipeline, the closed end of the filter cylinder abuts against the baffle ring and is connected with the baffle ring in a sealing manner, and the sealing component can be detachably connected with the open end of the filter cylinder and the second opening end of the filtering pipeline, the second opening end and the opening end of the filter cylinder are closed, so that the liquid flowing through the input pipeline flows into the filter pipeline after being secondarily filtered by the filter cylinder.

Further, the closing assembly comprises a flange, a fixing plate and a sealing gasket thereof, the flange is connected to the second open end of the filter pipeline, the fixing plate is connected to one side of the flange, which is far away from the filter pipeline, and is detachably connected with the flange through a bolt, the fixing plate penetrates through a through hole of the flange and is connected to the filter cartridge, and the fixing plate is used for driving the filter cartridge to abut against the retaining ring; the sealing gasket is arranged between the flange and the fixing plate, and the sealing gasket is sleeved on the filter cylinder and used for sealing a gap between the flange and the fixing plate.

Further, the length of the filter cartridge is greater than the distance from the retaining ring to the second open end, and the fixing plate can drive the filter cartridge to abut against the retaining ring and elastically deform along the radial direction of the filter cartridge.

Further, the diameter of the first filtering hole is smaller than that of the second filtering hole.

Further, the diameter of the inner ring of the baffle ring is smaller than that of the filter cylinder.

Further, the baffle ring and the filtering pipeline are coaxially arranged.

Further, the filter cartridge further comprises a pull ring connected to the fixing plate for removing the filter cartridge.

Furthermore, the filter cylinder also comprises at least one elastic rib, and the elastic rib is arranged on the circumferential outer wall of the filter cylinder.

Furthermore, the number of the elastic ribs is multiple, and the elastic ribs are circumferentially distributed on the circumferential outer wall of the filter cylinder in an array manner.

Further, a plurality of the elastic ribs are arranged along the axial direction of the filter cartridge.

Compared with the prior art, the utility model has the beneficial effects that: the filter is mainly used for filtering solid particles in liquid raw materials during preparation of the polyol benzoate and improving the quality of the polyol benzoate, and the filter cartridge is detachably mounted on the filter pipeline through the sealing assembly and can be detached at any time as required, so that the filter is convenient to clean.

Drawings

FIG. 1 is a schematic diagram of a filter for preparing polyol benzoate according to an example of the present invention;

fig. 2 is a schematic structural diagram of a filter pipe and a closing assembly in a filter for preparing polyol benzoate according to an embodiment of the present invention.

Fig. 3 is a schematic structural diagram of a filter cartridge in a filter for preparing polyol benzoate according to an embodiment of the present invention.

Detailed Description

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate preferred embodiments of the utility model and together with the description, serve to explain the principles of the utility model and not to limit the scope of the utility model.

Referring to fig. 1, the present invention provides a filter for preparing polyol benzoate, which is used for preparing polyol benzoate, and includes an input pipe 1, a filtering pipe 2, a baffle ring 3, a filter cartridge 4 and a sealing component 5, wherein the input pipe 1 is communicated with the filtering pipe 2 for conveying liquid raw materials, the baffle ring 3 is arranged in the filtering pipe 2, and the filter cartridge 4 is inserted into the filtering pipe 2 through the sealing component 5 and abuts against the baffle ring 3 for filtering liquid flowing through the input pipe 1 and the filtering pipe 2.

Referring to fig. 2, specifically, a liquid inlet hole 21 communicated with the input pipe 1 is formed in an outer circumferential wall of the filter pipe 2, the baffle ring 3 is fixedly disposed in the filter pipe 2, the baffle ring 3 is disposed between the liquid inlet hole 21 and a first open end 22 of the filter pipe 2, the interior of the filter cartridge 4 is hollow and has an open end, a plurality of first filter holes 41 are formed in a closed end of the filter cartridge 4, a second filter hole 42 is formed in an outer circumferential wall of the filter cartridge 4, the closed end of the filter cartridge 4 is slidably inserted into the filter pipe 2 through a second open end 23 of the filter pipe 2, the closed end of the filter cartridge 4 abuts against the baffle ring 3 and is hermetically connected to the baffle ring 4, the closing assembly 5 is detachably connected to the open end of the filter cartridge 4 and the second open end 23 of the filter pipe 2 for closing the second open end 23 and the open end of the filter cartridge 4, the liquid input into the pipeline 1 flows into the filtering pipeline 2 after being filtered twice by the filter cartridge 4, so that solid particles in the liquid material can be filtered, and the quality of the benzoic acid polyol ester is improved.

It can be understood that the number of the filtering pipes 2 and the input pipes 1 can be increased according to the need, when the transportation distance is longer, only the filter cartridge is needed to be installed at the connection position of the filtering pipe 2 and the input pipe 1 for filtering, and the pipes can be sequentially added behind the filtering pipe 2 and the input pipe 1.

In a preferred embodiment, the diameter of the inner ring of the baffle ring 3 is smaller than the diameter of the filter cartridge 4, and the baffle ring 3 is arranged coaxially with the filter pipe 1, so that the filter cartridge can be fixed to abut against the baffle ring and form a sealing structure with the baffle ring to filter solid particles in liquid.

As a preferred embodiment, the length of the filter cartridge 4 is greater than the distance from the baffle ring 3 to the second open end 23, and the closing element 5, when being fixed at the second open end 23 of the filter conduit 2, can drive the filter cartridge 4 to abut against the baffle ring 3 and elastically deform along the radial direction of the filter cartridge 4, so that the filter cartridge 4 abuts against the baffle ring 3 with a certain pressure, and when the temperature of the liquid flowing through the filter conduit 2 changes, the filter cartridge 4 may deform due to thermal expansion and contraction, thereby creating a gap between the filter cartridge 4 and the baffle ring 3, at this time, the original compression state recovery portion of the filter cartridge 4 can drive the filter cartridge 4 to better abut against the baffle ring 3, and sealing and filtering in the filter conduit 2 are completed.

Referring to fig. 3, as a preferred embodiment, a plurality of elastic ribs 43 are further disposed on the filter cartridge 4, the plurality of elastic ribs 43 are all fixed on the outer wall of the filter cartridge 4, and the plurality of elastic ribs 43 are distributed in a circumferential array and arranged along the axial direction of the filter cartridge 4, wherein a plurality of filter holes are respectively formed in the circumferential side wall and the circumferential bottom wall of the filter cartridge, when the filter cartridge 43 and the seal assembly 5 thereof are fixed with the filter conduit 2, the filter cartridge 4 and the elastic ribs 43 can be simultaneously bent in the radial direction by pressing the filter cartridge 4 and the elastic ribs 43 in the axial direction of the filter conduit 2, at this time, the filter cartridge 4 can be pressed on the baffle ring 3 with a certain force, the elastic ribs 43 are in a bent state, so that the gap between the filter cartridge and the inner wall of the filter conduit 2 can be better sealed, when there is a gap between the filter cartridge 4 and the baffle ring 3 after the filter cartridge 4 shrinks, the filter cartridge 4 and the elastic ribs 43 do not abut against the baffle ring 3, the deformation of the filter cartridge 4 and the elastic ribs 43 is reduced or changed from the deformed state to the upright state so that the filter cartridge is always abutted against the retainer ring 3, preventing solid particles from flowing out of the gap between the filter cartridge 4 and the retainer ring 3.

Referring to fig. 2, as a preferred embodiment, the closing assembly 5 includes a flange 51, a fixing plate 52 and a sealing gasket 53 thereof, the flange 51 is connected to the second open end 23 of the filter pipe 2, the fixing plate 52 is connected to a side of the flange 51 away from the filter pipe 2 and detachably connected to the flange 51 by bolts, and the fixing plate 52 is connected to the filter cartridge 4 through a through hole of the flange 51 for urging the filter cartridge 4 against the retainer ring 3; the sealing gasket 53 is disposed between the flange 51 and the fixing plate 52, the sealing gasket 53 is sleeved on the filter cartridge 4 for sealing a gap between the flange 51 and the fixing plate 52, wherein the flange and the sealing gasket thereof are common parts in the prior art, and are not further described herein, the fixing plate 53 is mounted to the second opening end 23 of the filter pipe 2, and can be detached at any time as required to take out the filter cartridge 4, and then the internal cleaning of the filter cartridge 4 and the pipe is completed.

In a preferred embodiment, the filter further comprises a pull ring 6, said pull ring 6 being connected to said holding plate 53 to facilitate removal of said filter cartridge 4 for cleaning of the filter.

The working principle of the embodiment provided by the utility model is as follows: when the filter is used for preparing the polyol benzoate, solid particles in liquid are filtered, when the liquid flows through the input pipeline and the filtering pipeline, the solid particles in the liquid are filtered by the filter cartridge at the pipeline joint, the liquid enters the second filtering hole from the side wall of the filter cartridge to complete the first filtering, larger solid particles in the liquid can be filtered, then the liquid flows into the filtering pipeline from the first filtering hole, the second filtering is completed by the first filtering hole, fine solid particles are blocked into the filter, the filter cartridge can be detached from the used filter through the sealing component, and the filter cartridge are cleaned.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention.

Claims

1. A filter for preparing benzoic acid polyol ester is characterized in that: the filter comprises an input pipeline, a filter pipeline, a baffle ring, a filter cylinder and a sealing component, wherein a liquid inlet hole communicated with the input pipeline is formed in the circumferential outer wall of the filter pipeline, the baffle ring is fixedly arranged in the filter pipeline, the baffle ring is arranged between the liquid inlet hole and a first opening end of the filter pipeline, the interior of the filter cylinder is hollow, one end of the filter cylinder is opened, a plurality of first filter holes are formed in the closed end of the filter cylinder, second filter holes are formed in the circumferential outer wall of the filter cylinder, the closed end of the filter cylinder is slidably inserted into the filter pipeline through a second opening end of the filter pipeline, the closed end of the filter cylinder is abutted against the baffle ring and is in sealing connection with the baffle ring, and the sealing component is detachably connected with the open end of the filter cylinder and the second opening end of the filter pipeline and is used for sealing the second opening end and the open end of the filter cylinder, so that the liquid flowing through the input pipeline flows into the filtering pipeline after being secondarily filtered by the filter cartridge.

2. The filter for preparing polyol benzoate according to claim 1 wherein: the sealing assembly comprises a flange, a fixing plate and a sealing gasket, the flange is connected to the second opening end of the filter pipeline, the fixing plate is connected to one side, away from the filter pipeline, of the flange and detachably connected with the flange through bolts, the fixing plate penetrates through a through hole of the flange to be connected to the filter cartridge and is used for driving the filter cartridge to abut against the retaining ring; the sealing gasket is arranged between the flange and the fixing plate, and the sealing gasket is sleeved on the filter cylinder and used for sealing a gap between the flange and the fixing plate.

3. The filter for producing a polyol benzoate according to claim 2 wherein: the length of the filter cartridge is greater than the distance from the retaining ring to the second opening end, and the fixing plate can drive the filter cartridge to abut against the retaining ring and elastically deform along the radial direction of the filter cartridge.

4. The filter for preparing polyol benzoate according to claim 1 wherein: the diameter of the first filtering hole is smaller than that of the second filtering hole.

5. The filter for preparing polyol benzoate according to claim 1 wherein: the inner ring diameter of the baffle ring is smaller than the diameter of the filter cartridge.

6. The filter for producing a polyol benzoate according to claim 5 wherein: the baffle ring and the filtering pipeline are coaxially arranged.

7. The filter for producing a polyol benzoate according to claim 2 wherein: the filter cartridge further comprises a pull ring connected to the fixing plate and used for taking out the filter cartridge.

8. The filter for preparing polyol benzoate according to claim 1 wherein: the filter cartridge at any time further comprises at least one elastic rib, and the elastic rib is arranged on the outer wall of the circumference of the filter cartridge.

9. The filter for producing a polyol benzoate according to claim 8 wherein: the elastic ribs are distributed on the circumferential outer wall of the filter cylinder in a circumferential array manner.

10. The filter for producing a polyol benzoate according to claim 9 wherein: a plurality of the elastic ribs are arranged along the axial direction of the filter cartridge.