Airflow dryer for octabromoether production

Abstract

The utility model relates to drying device technical field, including drying cylinder, the coaxial support net cylinder of being fixed with in drying cylinder, the inside wall of support net cylinder inserts the filter cartridge that is consistent with it, and forms material drying area through filter cartridge inner chamber, forms drying gas flow discharge area between filter cartridge outer wall and drying cylinder inner wall, and the material drying area is vertically rotated and is equipped with cloth gas cylinder, and the outer wall of cloth gas cylinder is evenly distributed with a plurality of cloth gas hole, and the outer wall of cloth gas cylinder inserts the blocking net piece that covers cloth gas hole. The utility model overcomes the problem that wet eight bromine ether material particle in traditional technology exchanges heat with drying gas flow, is limited to the distribution structure limitation of drying gas flow, makes drying gas flow not to be able to contact with wet eight bromine ether material particle evenly, and further reduces drying efficiency.

Description

Technical Field

[0001] This utility model relates to the field of drying equipment technology, specifically to an airflow dryer for the production of octabromoether. Background Technology

[0002] Octabromoether, chemically known as tetrabromobisphenol A-bis(2,3-dibromopropyl ether), is produced using a flow dryer, a key piece of equipment in the process to remove moisture or solvents from wet materials. Its design must consider the physicochemical properties of octabromoether (such as its heat sensitivity, particle size distribution, and temperature resistance) to achieve efficient drying and ensure product quality. The process involves using hot air at 150-200°C to complete heat and mass transfer between the wet octabromoether particles.

[0003] A prior art patent with publication number CN214406851U discloses a solution including a box with multiple feed inlets at the top. A rotating shaft is rotatably connected inside the box, and a geared motor is fixedly connected to the bottom of the shaft. Multiple pairs of dispersing and drying mechanisms are mounted on the shaft. Each pair of dispersing and drying mechanisms includes a first drying disc and a second drying disc, both fixedly connected to the shaft. Multiple first material discharge grooves are located on the side of the first drying disc closest to the shaft. This invention utilizes the rotation of both the first and second drying discs to drive a gear ring, which in turn drives a rotating gear to rotate. The rotating gear then drives a dispersing shaft, which in turn drives the dispersing strips on its surface to rotate. Material passes over a scraper and contacts the rotating dispersing strips, thereby breaking up clumps and improving the drying effect.

[0004] The shortcomings of existing technology have gradually become apparent with use, mainly in the following aspects:

[0005] First, when wet octabromoether particles exchange heat with the drying airflow, the distribution structure of the drying airflow limits the uniform contact between the drying airflow and the wet octabromoether particles, thus reducing the drying efficiency.

[0006] Secondly, when drying wet octabromoether particles, the existing drying equipment is prone to clogging the filter screen with powder, making it difficult to clean and maintain the filter screen, thus reducing the drying efficiency.

[0007] In conclusion, the existing technology obviously has inconveniences and defects in practical use, so it is necessary to improve it. Utility Model Content

[0008] To address the shortcomings of existing technologies, this utility model provides an airflow dryer for octabromoether production, which solves the problem that in traditional technologies, when wet octabromoether particles exchange heat with the drying airflow, the distribution structure of the drying airflow limits the uniform contact between the drying airflow and the wet octabromoether particles, thus reducing drying efficiency.

[0009] To achieve the above objectives, this utility model provides the following technical solution:

[0010] An airflow dryer for octabromoether production includes a drying cylinder. A supporting mesh cylinder is coaxially fixed inside the drying cylinder. A filter cartridge, which is fitted to the inner wall of the supporting mesh cylinder, is inserted into the inner wall of the filter cartridge, forming a material drying zone. A drying airflow discharge zone is formed between the outer wall of the filter cartridge and the inner wall of the drying cylinder.

[0011] An air distribution cylinder is vertically rotatable within the material drying area. Several air distribution holes are evenly distributed on the outer wall of the air distribution cylinder, and a baffle plate covering the air distribution holes is inserted into the outer wall of the air distribution cylinder.

[0012] As an optimized solution, several rows of baffles are fixedly attached to the outer wall of the air distribution cylinder, and the baffles in adjacent rows are arranged in a staggered manner along the vertical direction.

[0013] As an optimized solution, a side scraper is vertically fixed between the outer ends of each row of baffles, and the side scraper makes frictional contact with the inner wall of the filter cartridge.

[0014] As an optimized solution, a base plate is fixedly connected to the lower end of the drying cylinder, and a cover is fastened to the upper end of the drying cylinder by bolts.

[0015] As an optimized solution, an arc-shaped guide plate is fixedly connected to the outer wall of the air distribution cylinder near the base plate, and the lower edge of the arc-shaped guide plate is in frictional contact with the upper surface of the base plate.

[0016] As an optimized solution, a conical guide section is fixedly connected to the upper end of the air distribution cylinder, and a feed valve cylinder located in the conical guide section is fixedly connected to the top of the cover.

[0017] As an optimized solution, the air distribution holes include vertically oriented rectangular holes, each of which is located in the region between adjacent rows of spoilers.

[0018] As an optimized solution, the air distribution cylinder is vertically fixed to the outer walls on both sides of the air distribution hole, and a sliding groove is opened between the opposite side walls of the two mounting seats. The baffle is an arc-shaped piece that fits against the outer wall of the air distribution cylinder, and the two side edges of the baffle are inserted into the two sliding grooves.

[0019] As an optimized solution, several of the aforementioned spoilers are arranged at an angle to the horizontal plane.

[0020] As an optimized solution, the lower end of the air distribution cylinder extends to the bottom of the base plate and is rotatably fitted with an air inlet cylinder.

[0021] As an optimized solution, a toothed ring is fixedly connected to the outer wall of the air distribution cylinder, and a drive motor is fixedly connected to the lower surface of the base plate. The output shaft of the drive motor meshes with the toothed ring using gears.

[0022] As an optimized solution, a sealing ring is provided between the outer wall of the air inlet cylinder and the inner wall of the air distribution cylinder.

[0023] As an optimized solution, a discharge valve cylinder communicating with the inner cavity of the filter cartridge is fixedly connected to the lower surface of the base plate near the outer edge.

[0024] As an optimized solution, an exhaust valve cylinder that connects to the drying airflow discharge area is fixedly connected to the outer wall of the drying cylinder.

[0025] As an optimized solution, a powder discharge valve cylinder that connects to the drying airflow discharge area is fixedly connected to the outer wall of the drying cylinder near the bottom.

[0026] As an optimized solution, the lower end of each mounting base is fixed to a support protrusion located below the slide groove, and the lower end of the baffle plate abuts against the support protrusion.

[0027] Compared with the prior art, the beneficial effects of this utility model are:

[0028] Wet octabromoether particles are fed into the feed valve cylinder, where they are evenly dispersed outwards by the conical guide section. The drive motor rotates the air distribution cylinder, and the baffles disperse the falling material. After the material is added, the air inlet cylinder introduces dry air through the air source. The introduced dry airflow is ejected through the air distribution holes to exchange heat with the internal material. At the same time, the drive motor rotates the baffles to turbulent and agitate the material and the dry airflow, improving contact efficiency. Due to the inclined design of the baffles, the material can be turned over during rotation, further improving the heat exchange efficiency and drying efficiency. The dried airflow passes through the filter cylinder and enters the dry airflow discharge area, then enters the subsequent processing equipment through the exhaust valve cylinder for further processing.

[0029] By inserting a baffle plate covering the air distribution holes into the outer wall of the air distribution cylinder, large particles can be prevented from entering the air distribution cylinder. By setting a filter cartridge, large particles can be prevented from entering the drying air discharge area. When internal maintenance is required, the cover can be removed. Since the filter cartridge is inserted into the supporting mesh cylinder, the filter cartridge can be lifted upwards for cleaning, and the baffle plate can also be lifted upwards for cleaning, which is convenient and quick. Attached Figure Description

[0030] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0031] Figure 1 This is a schematic diagram of the structure of this utility model;

[0032] Figure 2 This is a schematic diagram of the structure of the mesh panel of this utility model.

[0033] In the diagram: 1-Drying cylinder, 2-Supporting mesh cylinder, 3-Filter cylinder, 4-Material drying area, 5-Drying airflow discharge area; 6-Baffle plate; 7-Side scraper; 8-Arc-shaped guide plate; 9-Conical guide section; 10-Air distribution cylinder; 11-Air distribution hole; 12-Baffle plate; 13-Mounting base; 14-Cover; 15-Feed valve cylinder; 16-Exhaust valve cylinder; 17-Powder discharge valve cylinder; 18-Discharge valve cylinder; 19-Gear ring; 20-Drive motor; 21-Air inlet cylinder. Detailed Implementation

[0034] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and should not be construed as limiting the scope of protection of the present invention.

[0035] like Figure 1 and Figure 2 As shown, the airflow dryer for octabromoether production includes a drying cylinder 1. A supporting mesh cylinder 2 is coaxially fixed inside the drying cylinder 1. The aperture of the supporting mesh cylinder 2 is much larger than that of the filter cylinder 3, serving a supporting function. A filter cylinder 3 is inserted into the inner wall of the supporting mesh cylinder 2 and fits against it. A material drying zone 4 is formed through the inner cavity of the filter cylinder 3. A drying airflow discharge zone 5 is formed between the outer wall of the filter cylinder 3 and the inner wall of the drying cylinder 1.

[0036] A vertically rotating air distribution cylinder 10 is installed in the material drying area 4. Several air distribution holes 11 are evenly distributed on the outer wall of the air distribution cylinder 10. A baffle plate 12 covering the air distribution holes 11 is inserted into the outer wall of the air distribution cylinder 10.

[0037] Several rows of spoilers 6 are fixedly attached to the outer wall of the air distribution cylinder 10, and the spoilers 6 in adjacent rows are arranged in a staggered manner along the vertical.

[0038] Each row of spoilers 6 has a side scraper 7 vertically fixed to the outer ends of each other, and the side scraper 7 is in frictional contact with the inner wall of the filter cartridge 3.

[0039] A base plate is fixed to the lower end of the drying cylinder 1, and a cover 14 is fastened to the upper end of the drying cylinder 1 by bolts.

[0040] An arc-shaped guide plate 8 is fixed to the outer wall of the air distribution cylinder 10 near the bottom plate. The lower edge of the arc-shaped guide plate is in frictional contact with the upper surface of the bottom plate, which facilitates the discharge of the dried material from the discharge valve cylinder 18.

[0041] A conical guide section 9 is fixedly connected to the upper end of the air distribution cylinder 10, and a feed valve cylinder 15 located in the conical guide section 9 is fixedly connected to the top of the cover body 14.

[0042] The air distribution holes 11 include vertically oriented rectangular holes, each rectangular hole being located in the area between adjacent rows of spoilers 6.

[0043] The air distributor 10 is vertically fixed to the outer walls of the air distribution hole 11 on both sides, and a sliding groove is provided between the opposite side walls of the two mounting seats 13. The baffle plate 12 is an arc-shaped piece that fits against the outer wall of the air distributor 10, and the two sides of the baffle plate 12 are inserted into the two sliding grooves.

[0044] Several spoilers 6 are set at an angle to the horizontal plane.

[0045] The lower end of the air distribution cylinder 10 extends to the bottom of the base plate and is rotatably fitted with an air inlet cylinder 21.

[0046] A gear ring 19 is fixedly connected to the outer wall of the air distribution cylinder 10, and a drive motor 20 is fixedly connected to the lower surface of the base plate. The output shaft of the drive motor 20 meshes with the gear ring 19 using gears.

[0047] A sealing ring is provided between the outer wall of the air inlet cylinder 21 and the inner wall of the air distribution cylinder 10.

[0048] The lower surface of the base plate near the outer edge is fixed with a discharge valve cylinder 18 that communicates with the inner cavity of the filter cylinder 3.

[0049] An exhaust valve cylinder 16, which connects to the drying airflow discharge area 5, is fixedly attached to the outer wall of the drying cylinder 1.

[0050] A powder discharge valve cylinder 17, which connects to the drying airflow discharge area 5, is fixedly connected to the outer wall near the bottom of the drying cylinder 1 to discharge the powder that enters the drying airflow discharge area 5.

[0051] The lower end of each mounting base 13 is fixed to a support protrusion located below the slide groove, and the lower end of the baffle plate 12 abuts against the support protrusion.

[0052] A circumferential limiting structure can be provided between the upper end of the filter cartridge 3 and the lower surface of the cover 14, such as a protrusion on the top of the filter cartridge 3 and a groove on the lower surface of the cover 14, to prevent the filter cartridge 3 from rotating.

[0053] The working principle of this device is as follows:

[0054] Wet octabromoether particles are fed into the feed valve cylinder 15 and dispersed evenly outwards under the action of the conical guide section 9. The drive motor 20 drives the air distribution cylinder 10 to rotate, and the baffle plate 6 disperses the falling material. After the material is added, the air inlet cylinder 21 introduces dry air through the air source. The introduced dry airflow is sprayed out through the air distribution hole 11 to achieve heat exchange with the internal material. At the same time, the drive motor 20 drives the baffle plate 6 to rotate to turbulent and stir the material and the dry airflow, improving the contact efficiency. Since the baffle plate 6 is inclined, it can turn the material during rotation, further improving the heat exchange efficiency of the material and the drying efficiency. The dried airflow passes through the filter cylinder 3 and enters the dry airflow discharge area 5, and enters the subsequent processing equipment through the exhaust valve cylinder 16 for further processing.

[0055] By inserting a baffle plate 12 covering the air distribution holes 11 into the outer wall of the air distribution cylinder 10, large particles can be prevented from entering the interior of the air distribution cylinder 10. By setting a filter cylinder 3, large particles can be prevented from entering the dry air discharge area 5. When internal maintenance is required, the cover 14 can be removed. Since the filter cylinder 3 is inserted into the support mesh cylinder 2, the filter cylinder 3 can be lifted upwards for cleaning, and the baffle plate 12 can also be lifted upwards for cleaning, which is convenient and quick.

[0056] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model.

Claims

1. An airflow dryer for the production of octabromoether, characterized in that: The device includes a drying cylinder (1), a supporting mesh cylinder (2) is coaxially fixed inside the drying cylinder (1), a filter cylinder (3) is inserted into the inner wall of the supporting mesh cylinder (2) and fits therewith, and a material drying area (4) is formed through the inner cavity of the filter cylinder (3), and a drying airflow discharge area (5) is formed between the outer wall of the filter cylinder (3) and the inner wall of the drying cylinder (1). The material drying area (4) is vertically rotatably equipped with an air distribution cylinder (10). The outer wall of the air distribution cylinder (10) is evenly distributed with a number of air distribution holes (11). A baffle plate (12) covering the air distribution holes (11) is inserted into the outer wall of the air distribution cylinder (10).

2. The airflow dryer for octabromoether production according to claim 1, characterized in that: The outer wall of the air distribution cylinder (10) is surrounded by several rows of baffles (6), and the baffles (6) in adjacent rows are arranged in a staggered manner along the vertical.

3. The airflow dryer for octabromoether production according to claim 2, characterized in that: A side scraper (7) is vertically fixed between the outer ends of each row of the baffles (6), and the side scraper (7) is in frictional contact with the inner wall of the filter cartridge (3).

4. The airflow dryer for octabromoether production according to claim 3, characterized in that: The lower end of the drying cylinder (1) is fixedly connected to a bottom plate, and the upper end of the drying cylinder (1) is fitted with a cover (14) by bolts.

5. The airflow dryer for octabromoether production according to claim 4, characterized in that: An arc-shaped guide plate (8) is fixed to the outer wall of the air distribution cylinder (10) near the base plate, and the lower edge of the arc-shaped guide plate (8) is in frictional contact with the upper surface of the base plate.

6. The airflow dryer for octabromoether production according to claim 5, characterized in that: The upper end of the air distribution cylinder (10) is fixedly connected to a conical guide section (9), and the top of the cover (14) is fixedly connected to a feed valve cylinder (15) located in the conical guide section (9).

7. The airflow dryer for octabromoether production according to claim 6, characterized in that: The air distribution holes (11) include rectangular holes opened vertically, each of which is located in the area between adjacent columns of spoilers (6).

8. The airflow dryer for octabromoether production according to claim 7, characterized in that: The air distribution cylinder (10) is vertically fixed to the outer walls on both sides of the air distribution hole (11) with mounting bases (13). A sliding groove is provided between the opposite side walls of the two mounting bases (13). The baffle plate (12) is an arc-shaped piece that fits against the outer wall of the air distribution cylinder (10). The two sides of the baffle plate (12) are inserted into the two sliding grooves.

9. The airflow dryer for octabromoether production according to claim 8, characterized in that: The lower end of the air distribution cylinder (10) extends to the bottom of the base plate and is rotatably fitted with an air inlet cylinder (21).

10. The airflow dryer for octabromoether production according to claim 9, characterized in that: The bottom plate is fixedly connected to the lower surface near the outer edge with a discharge valve cylinder (18) that communicates with the inner cavity of the filter cylinder (3), and the drying cylinder (1) is fixedly connected to the outer wall with an exhaust valve cylinder (16) that communicates with the drying airflow discharge area (5).

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