Phthalic anhydride sewage treatment tank with filtering device

Abstract

The utility model discloses a phthalic anhydride sewage treatment tank with a filtering device, which comprises a sewage tank and a solid filtering device arranged on the sewage tank, and further comprises a sewage inlet pipe for conveying sewage to be treated to the solid filtering device, a sewage tank longitudinal beam is arranged on the sewage tank, a supporting table is arranged on the side wall of the sewage tank and the sewage tank longitudinal beam, and the supporting table is arranged on the supporting table. The solid filtering device is arranged on the supporting table and comprises a shell, an inner cylinder arranged in the shell, a driving device providing rotation for the inner cylinder and a filtering net bag laid in the inner cylinder. Solid acidic organic matters in sewage after phthalic anhydride tail gas is absorbed can be recovered, and liquid caustic soda required for neutralizing the sewage in a sewage pool is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical equipment, in particular to a sewage treatment pool with a filtering device. Background Art

[0002] Phthalic anhydride, also known as maleic anhydride, is an organic compound with the chemical formula C8H4O3. It is a white crystalline powder that is insoluble in cold water, slightly soluble in hot water and ether, and soluble in ethanol, pyridine, benzene, carbon disulfide, and other chemicals. It is an important organic chemical raw material and a key intermediate in the preparation of phthalate plasticizers, coatings, saccharin, dyes, and organic compounds. Currently, o-xylene is used as the raw material and vanadium pentoxide as the catalyst. Phthalic anhydride is produced by a gas-phase catalytic oxidation reaction between o-xylene and air at temperatures of 350-360°C. Due to increasingly stringent environmental protection requirements, it is necessary to add a water absorption device before the exhaust gas treatment tower. Phthalic anhydride and byproducts contained in the exhaust gas react with water to produce solids. These solids contain acidic organic matter with recycling value. Directly sending these solids to the sewage treatment tank for treatment not only increases the load on the sewage treatment equipment but also results in a waste of resources. Utility Model Content

[0003] In view of this, the utility model provides a phthalic anhydride wastewater treatment pool with a filtering device, which can recover acidic organic matter with recycling value before the wastewater that absorbs phthalic anhydride tail gas enters the wastewater treatment pool, thereby reducing the liquid alkali used to neutralize the acidity of the wastewater in the later stage.

[0004] The technical solution adopted by the utility model to solve its technical problems is:

[0005] A phthalic anhydride wastewater treatment pool with a filtering device comprises a wastewater pool and a solid filtering device arranged on the wastewater pool, and also comprises a wastewater inlet pipe for conveying wastewater to be treated to the solid filtering device. The invention is characterized in that: a wastewater pool longitudinal beam is provided on the wastewater pool, a support platform is provided on the side wall of the wastewater pool and the wastewater pool longitudinal beam, the solid filtering device is arranged on the support platform, and the solid filtering device comprises an outer shell, an inner cylinder arranged inside the outer shell, a driving device for providing rotation to the inner cylinder, and a filter mesh bag laid inside the inner cylinder.

[0006] Furthermore, a plurality of reinforcing columns are provided on the longitudinal beam of the sewage pool in the vertical direction, one end of the reinforcing column is fixed to the longitudinal beam of the sewage pool, and the other end is fixed to the bottom of the sewage pool.

[0007] Furthermore, the support platform includes a first crossbeam and a second crossbeam arranged transversely, and a first longitudinal beam and a second longitudinal beam arranged longitudinally. One end of the first crossbeam and the second crossbeam is fixed on the wall of the sewage pool, and the other end is fixed on the longitudinal beam of the sewage pool. A "well" shape is formed between the first crossbeam, the second crossbeam, and the first longitudinal beam and the second longitudinal beam.

[0008] Further, a plurality of first fixing bases are arranged on the first and second longitudinal beams respectively.

[0009] Further, a damping component is arranged on the first fixing base, which is damping rubber or damping spring.

[0010] Further, the shell is in the shape of a barrel with an open top, and a plurality of first water outlets are arranged on the bottom of the shell.

[0011] Further, a bearing seat is arranged at the center of the bottom of the shell, and a bearing is arranged in the bearing seat.

[0012] Further, a plurality of second fixing bases are arranged on the back of the bottom of the shell, and the number and size of the second fixing bases are matched with the first fixing bases, i.e. the second fixing bases can be arranged on the first fixing bases.

[0013] Further, the inner cylinder is in the shape of a barrel with an open top, a plurality of second water outlets are arranged on the sidewall and the bottom of the inner cylinder, a splash-proof plate is arranged at one end of the open top of the sidewall of the inner cylinder, and a tapered transmission shaft is arranged on the bottom of the inner cylinder, and a first belt pulley is arranged on the small-diameter end of the tapered transmission shaft, and the large-diameter end of the tapered transmission shaft is fixed to the bottom of the inner cylinder.

[0014] Further, the driving device comprises a motor, and the motor is arranged vertically on the second cross beam, and an output shaft is arranged on the upper end of the motor, and a second belt pulley is arranged coaxially on the output shaft, and a belt is arranged between the second belt pulley and the first belt pulley.

[0015] The beneficial effects of the utility model are as follows:

[0016] The phenolic wastewater treatment tank with the filtering device provided by the utility model can recover the solid acid organic matters in the wastewater after absorbing the phenolic tail gas, reduce the liquid alkali required for neutralizing the wastewater in the wastewater tank, reduce the subsequent wastewater treatment load, increase the economic value, and reduce the wastewater volume. BRIEF DESCRIPTION OF DRAWINGS

[0017] The utility model will be further described below in combination with the drawings and examples.

[0018] Figure 1 The top view of the phenolic wastewater treatment tank with the filtering device provided by the utility model is shown in FIG. 1;

[0019] Figure 2 The perspective structural schematic diagram of the phenolic wastewater treatment tank with the filtering device shown in FIG. 1 is shown in FIG. 2; Figure 1

[0020] The structural schematic diagram of the wastewater tank shown in FIG. 1 is shown in FIG. 3; Figure 3 Figure 2 ​​

[0021] Figure 4 for Figure 1 a housing structure schematic diagram shown in FIG.

[0022] Figure 5 for Figure 4 a housing structure schematic diagram shown in FIG.

[0023] Figure 6 for Figure 2 a inner cylinder structure schematic diagram shown in FIG.

[0024] Figure 7 for Figure 2 a inner cylinder structure schematic diagram shown in FIG.

[0025] Figure 8 for a filter bag structure schematic diagram in the embodiment;

[0026] In the figure: 100, phthalic anhydride sewage treatment tank with filter device; 1, sewage tank; 11, support table; 111, first cross beam; 112, second cross beam; 113, first longitudinal beam; 114, second longitudinal beam; 115, first fixed seat; 116, second damping component; 12, sewage tank longitudinal beam; 13, reinforcing column; 2, solid filter device; 21, shell; 211, first water outlet hole; 212, bearing seat; 213, bearing; 214, second fixed seat; 22, inner cylinder; 221, second water outlet hole; 222, splash-proof water tray; 223, conical transmission shaft; 224, first belt disc; 225, boss; 226, bearing mounting shaft; 23, driving device; 231, motor; 232, output shaft; 233, second belt disc; 234, belt; 24, filter bag; 241, mesh; 242, bag side wall; 243, bag bottom; 244, conical boss; 3, sewage inlet pipe. DETAILED DESCRIPTION

[0027] The utility model will be explained in detail now in combination with the drawings. This drawing is a simplified schematic diagram, only the basic structure of the utility model is schematically shown, therefore it only shows the structure related to the utility model.

[0028] Referring to Figures 1-3 The utility model provides a phthalic anhydride sewage treatment tank 100 with filter device 100, including sewage tank 1 and the solid filter device 2 of setting on sewage tank 1, still including the sewage inlet pipe 3 of the sewage that sends to solid filter device 2 with the sewage to be handled. The sewage that absorbs phthalic anhydride tail gas contains recyclable acid solid organic matter, and is delivered to solid filter device 2 through sewage inlet pipe 3, and the sewage after filtering flows into sewage tank 1, and carries out next step neutralization treatment, can recycle acid solid organic matter with recycling value, reduces the alkali consumption of neutralization treatment unit simultaneously, thereby reducing sewage amount, solid waste amount.

[0029] refer to Figure 3 As shown, the sewage tank 1 has the shape of a rectangular parallelepiped with an upward opening. A sewage tank longitudinal beam 12 is provided on the open surface. The ends of the sewage tank longitudinal beam 12 are fixed to the sewage tank 1 walls on both sides. The provision of the sewage tank longitudinal beam 12 provides installation space for the solid filtration device 2. Specifically, the distance between the sewage tank longitudinal beam 12 and the opposite sewage tank side wall can be adjusted to provide a suitable installation position. Several reinforcing columns 13 can also be vertically provided on the sewage tank longitudinal beam 12. One end of the reinforcing column 13 is fixed to the sewage tank longitudinal beam 12, and the other end is fixed to the bottom of the sewage tank 1. The reinforcing columns 13 can provide support for the sewage tank longitudinal beam 12, making the sewage tank longitudinal beam 12 more secure.

[0030] A support platform 11 is provided on the sewage pool 1, and the support platform 11 includes a first crossbeam 111 and a second crossbeam 112 arranged horizontally, and a first longitudinal beam 113 and a second longitudinal beam 114 arranged longitudinally. One end of the first crossbeam 111 and the second crossbeam 112 is fixed to the pool wall of the sewage pool 1, and the other end is fixed to the longitudinal beam 12 of the sewage pool. A "well" shape is formed between the first crossbeam 111, the second crossbeam 112, the first longitudinal beam 113 and the second longitudinal beam 114. A plurality of first fixing seats 115 are respectively provided on the first longitudinal beam 113 and the second longitudinal beam 114. In this embodiment, there are a total of 4 fixing seats. A shock-absorbing component (not shown in the figure) is provided on the first fixing seat 115. The shock-absorbing component can be a shock-absorbing rubber or a shock-absorbing spring.

[0031] refer to Figures 1-4 As shown, the solid filtering device 2 includes an outer shell 21 , an inner cylinder 22 disposed inside the outer shell 21 , a driving device 23 for providing rotation to the inner cylinder 22 , and a filter mesh bag 24 laid inside the inner cylinder 22 .

[0032] refer to Figures 4-5 As shown, the outer shell 21 is shaped like a barrel with an open top. The bottom of the outer shell 21 is provided with multiple first water outlets 211, through which filtered sewage can flow into the sewage tank 1. A bearing seat 212 is located at the center of the bottom of the outer shell 21, and a bearing 213 is installed in the bearing seat 212. The back of the bottom of the outer shell 21 is provided with several second fixing seats 214. The number and size of the second fixing seats 214 match the first fixing seats 115, that is, the second fixing seats 214 can be installed on the first fixing seats 115.

[0033] refer to Figures 6-7As shown, the inner cylinder 22 is shaped like a barrel with an open top, the side wall and the bottom of the inner cylinder 22 are provided with a plurality of second water outlets 221, the side wall of the inner cylinder 22 is provided with a splash-proof tray 222 at one end of the opening, the bottom of the inner cylinder 22 is further provided with a tapered transmission shaft 223, the small-diameter end of the tapered transmission shaft 223 is provided with a first belt pulley 224, the large-diameter end is fixed to the bottom of the inner cylinder 22, the reverse side of the bottom of the inner cylinder 22 is provided with a boss 225, the boss 225 and the tapered transmission shaft 223 are coaxial, and the boss 225 is provided with a bearing mounting shaft 226. The bearing mounting shaft 226 can be mounted on the bearing 213 on the shell 21, so that the inner cylinder can rotate flexibly.

[0034] The driving device 23 includes a motor 231, which is vertically arranged on the second cross beam 112, preferably, the second cross beam is provided with a second damping component 116, and the motor 231 is vertically arranged on the second damping component 116. The upper end of the motor 231 is provided with an output shaft 232, the output shaft 232 is coaxially provided with a second belt pulley 233, and the second belt pulley 233 and the first belt pulley 224 are connected by a belt 234. The motor 231 rotates, which can drive the inner cylinder 22 to rotate through the belt 234, and the rotation of the inner cylinder 22 can form a centrifugal force to throw the liquid in the inner cylinder 22 out.

[0035] The inner cylinder 22 is provided with a filter bag 24, as shown in the reference Figure 8 As shown, the mesh bag side wall 242 and the mesh bag bottom 243 of the filter bag 24 are provided with mesh holes 241, through which the water in the sewage can flow, separating the acidic solid organic matter in the sewage. The mesh bag bottom 243 of the filter bag 24 is provided with a tapered boss 244, the upper end face and the lower end face of the tapered boss 244 are open, and the tapered boss 244 can be sleeved on the tapered transmission shaft 223, so that the tapered surface of the tapered boss 244 can be attached to the tapered transmission shaft 223.

[0036] When running, the wastewater containing acidic solid organic matter after absorbing phthalic anhydride tail gas enters the filter bag of the solid filter device 2 through the sewage inlet pipe, the motor 231 drives the inner cylinder 22 to rotate through the belt 234, the inner cylinder 22 drives the filter bag 24 to rotate, a centrifugal force is generated, the sewage accumulated in the filter bag 24 passes through the mesh holes 241, enters the shell 21 through the second water outlets 221, and then flows into the sewage pool 1 through the first water outlets under the action of gravity. The acidic solid organic matter is blocked by the mesh holes 241 and collected in the filter bag 24. When the solid filter device 2 runs for a period of time, a certain amount of acidic solid organic matter is collected in the filter bag 24, the acidic solid in the filter bag 24 can be transferred out, and the filter bag 24 can be used continuously.

[0037] With the above ideal embodiment of the present application as the inspiration, through the above description, relevant staff can make various changes and modifications without deviating from the scope of the present application. The technical scope of the present application is not limited to the content in the specification, and the technical scope must be determined according to the scope of claims.

Claims

1. A phenanlhre waste water treatment tank with a filtering device, comprising a waste water tank (1) and a solid filtering device (2) arranged on the waste water tank (1), further comprising a waste water inlet pipe (3) for delivering waste water to be treated to the solid filtering device (2), characterized in that: The sewage pool (1) is provided with a sewage pool longitudinal beam (12), a support platform (11) is provided on the side wall of the sewage pool (1) and the sewage pool longitudinal beam (12), the solid filtering device (2) is arranged on the support platform (11), and the solid filtering device (2) comprises an outer shell (21), an inner cylinder (22) arranged inside the outer shell (21), a driving device (23) for providing rotation for the inner cylinder (22), and a filter mesh bag (24) laid inside the inner cylinder (22).

2. The phenan-threne waste treatment tank with filtering device according to claim 1, characterized in that: The sewage pool longitudinal beam (12) is provided with a plurality of reinforcing columns (13) in a vertical direction. One end of the reinforcing column (13) is fixed to the sewage pool longitudinal beam (12), and the other end is fixed to the bottom of the sewage pool (1).

3. The phenantrone waste treatment tank with filtering device according to claim 2, characterized in that: The support platform (11) comprises a first transverse beam (111) and a second transverse beam (112) arranged transversely, and a first longitudinal beam (113) and a second longitudinal beam (114) arranged longitudinally. One end of the first transverse beam (111) and the second transverse beam (112) are fixed to the wall of the sewage pool (1), and the other end is fixed to the longitudinal beam (12) of the sewage pool. A "well" shape is formed between the first transverse beam (111), the second transverse beam (112), the first longitudinal beam (113), and the second longitudinal beam (114).

4. The phenantrone waste treatment tank with filtering device according to claim 3, characterized in that: A plurality of first fixing seats (115) are respectively provided on the first longitudinal beam (113) and the second longitudinal beam (114).

5. The phenanlhre wastewater treatment tank with filtering device according to claim 4, characterized in that: The first fixing seat (115) is provided with a shock absorbing component, and the shock absorbing component is a shock absorbing rubber or a shock absorbing spring.

6. The phenanlhre wastewater treatment tank with filtering device according to claim 5, characterized in that: The outer shell (21) is in the shape of a barrel with an open top, and a plurality of first water outlet holes (211) are provided at the bottom of the outer shell (21).

7. The phenanlhre wastewater treatment tank with filtering device according to claim 6, characterized in that: A bearing seat (212) is provided at the center of the bottom of the housing (21), and a bearing (213) is installed in the bearing seat (212).

8. The phenanlhre wastewater treatment tank with filtering device according to claim 7, characterized in that: A plurality of second fixing seats (214) are provided on the back side of the bottom of the housing (21), and the number and size of the second fixing seats (214) match those of the first fixing seats (115), that is, the second fixing seats (214) can be installed on the first fixing seats (115).

9. The phenanlhre wastewater treatment tank with filtering device according to claim 8, characterized in that, The inner cylinder (22) has an outer shape of a barrel with an open top. A plurality of second water outlet holes (221) are provided on the side wall and the bottom of the inner cylinder (22). A splash-proof tray (222) is provided at one end of the side wall of the inner cylinder (22) at the opening. A conical transmission shaft (223) is also provided at the bottom of the inner cylinder (22). A first belt pulley (224) is provided at the end with a smaller diameter of the conical transmission shaft (223), and the end with a larger diameter is fixed to the bottom of the inner cylinder (22).

10. The phenanlhre wastewater treatment tank with filtering device according to claim 9, characterized in that: The driving device (23) includes a motor (231), which is vertically arranged on the second crossbeam (112). An output shaft (232) is provided at the upper end of the motor (231). A second belt pulley (233) is coaxially provided with the output shaft (232). A belt (234) is connected between the second belt pulley (233) and the first belt pulley (224).

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