Adsorption column convenient to mount and dismount

Abstract

The invention belongs to the technical field of industrial wastewater treatment equipment, and particularly relates to an adsorption column convenient to mount and dismount. A lower sealing head, a first-stage column body, a second-stage column body, a third-stage column body and a fourth-stage column body are sequentially arranged from bottom to top, the upper sealing head, the third-stage column body and the fourth-stage column body are not detachable, the first-stage column body and the second-stage column body are not detachable, a water cap pore plate is arranged between the lower sealing head and the first-stage column body, a porous plate I is arranged between the first-stage column body and the second-stage column body, and a water outlet is formed in the upper sealing head. A perforated plate II is arranged between the second-stage column body and the third-stage column body, a perforated plate I is arranged between the third-stage column body and the fourth-stage column body, a perforated plate II is arranged between the fourth-stage column body and the upper sealing head, and the water cap pore plate, the perforated plate I and the perforated plate II are all provided with 50-mesh silk screens. The problems that an existing adsorption column is simple in structure and is a column body with sealing heads at the two ends, when an adsorption material is replaced, the adsorption material cannot be conveniently replaced, and treatment of industrial wastewater can be affected are solved.

Description

Technical Field

[0001] The invention belongs to the technical field of industrial wastewater treatment equipment, and in particular relates to an adsorption column which is easy to install and disassemble. Background Art

[0002] Industrial wastewater refers to wastewater generated and discharged during the production process of various industries. It can be divided into two categories: production wastewater (including domestic wastewater) and production wastewater. Industrial wastewater is of various types and complex in composition. Since industrial wastewater often contains a variety of toxic and harmful substances, polluting the environment is very harmful to human health. Therefore, it is necessary to develop comprehensive utilization, turn harm into benefit, recycle or recycle toxic and harmful substances in wastewater, reduce discharge into the environment, and adopt corresponding purification measures to treat it according to water quality characteristics such as the type, nature and concentration of pollutants before it can be discharged.

[0003] At present, the main methods for industrial wastewater treatment include multi-effect evaporation crystallization technology, biological method, sequencing batch reactor (SBR), electrolysis process, membrane separation method and ion exchange method. Among them, ion exchange method is widely used in the process of industrial wastewater treatment. It can be used to remove certain harmful substances in wastewater, recover valuable chemicals and rare elements, or to achieve the reuse of water resources. The ion exchange adsorption column is an important equipment in the ion exchange method. The adsorption columns currently used in our industry are not convenient to install and disassemble due to their large overall size, so adsorption columns that are easy to install and disassemble will be used; while the traditional adsorption column has a simple structure, which is a column with caps at both ends. When the adsorption material needs to be replaced, it is not convenient to replace the adsorption material, which will affect the treatment of industrial wastewater. To this end, we designed an adsorption column that is easy to install and disassemble. Summary of the invention

[0004] The purpose of the present invention is to provide an adsorption column that is easy to install and disassemble, so as to solve the problem that the existing adsorption column has a simple structure and is a column with heads at both ends. When the adsorption material is replaced, it is not convenient to replace the adsorption material, which will affect the treatment of industrial wastewater.

[0005] In order to achieve the above object, the technical solution adopted by the present invention is:

[0006] An adsorption column that is easy to install and disassemble, which comprises, from bottom to top, a lower head, a first-level column, a second-level column, a third-level column, a fourth-level column, and an upper head. The third-level column and the fourth-level column are not removable, the first-level column and the second-level column are not removable, a water cap orifice plate is provided between the lower head and the first-level column, a porous plate I is provided between the first-level column and the second-level column, a porous plate II is provided between the second-level column and the third-level column, and a porous plate I is provided between the third-level column and the fourth-level column. A porous plate II is arranged between the fourth-level column and the upper head, 50-mesh screens are arranged on the water cap orifice plate, porous plate I and porous plate II, hand holes are arranged on the same side of the first-level column, the second-level column, the third-level column and the fourth-level column, sight glasses are arranged on the same side of the first-level column and the fourth-level column, ears are arranged on the same side of the hand holes of the first-level column and the fourth-level column, an overflow pipe is arranged on the upper head, a feed distributor is arranged on the lower head, a discharge collector is arranged on the upper head, and a circle weld is arranged at the porous plate I.

[0007] The total height is 2900mm and the material is 316L stainless steel.

[0008] The thickness of 50 mesh screen is 3mm.

[0009] The hand hole diameter is 160mm.

[0010] The outer diameter of the porous plate I is 438 mm, the thickness is 6 mm, the small holes on the plate are arranged in a regular hexagon, the inner diameter of the small holes is 20 mm, the distance between the two small holes is 35 mm, and a 50-mesh wire mesh is spot-welded on the porous plate I.

[0011] The outer diameter of the porous plate II is 520 mm, the thickness is 7 mm, the small holes on the plate are arranged in a regular hexagon, the inner diameter of the small holes is 20 mm, the distance between the two small holes is 35 mm, and a 50-mesh wire mesh is spot-welded on the porous plate II.

[0012] The outer diameter of the water cap orifice plate is 520mm, the thickness is 9mm, the small holes on the plate are arranged in a regular hexagon, the inner diameter of the small holes is 25mm, the distance between the two small holes is 65mm, and a 50-mesh wire mesh is installed on the water cap orifice plate.

[0013] The feed distributor adopts a circulating plate injection structure.

[0014] The discharging collector adopts an inverted collecting cover structure.

[0015] The circle weld has a width of 10mm and a thickness of 16mm, and is welded between the first-level column and the second-level column, and between the third-level column and the fourth-level column.

[0016] The beneficial effects achieved by the present invention are:

[0017] The adsorption column is divided into two upper and lower column stages, which are composed of four tower plates. The flange design facilitates the installation and disassembly of the adsorption column. The upper and lower column stages of the adsorption column are separated by a detachable partition, and the center of the partition is a detachable screen, which realizes the uniform and convenient filling of the adsorption material and the uniform distribution of the wastewater in the adsorption column. The design of the detachable partition and the detachable screen realizes the arbitrary change of the number of tower plates inside the adsorption column from one to four. Rubber sealing gaskets are padded between the tower plates, and the sealing is achieved by pressing the upper and lower end covers. The adsorption column can be operated with positive and negative pressures, and the wastewater can be selected to enter and exit from the top or from the bottom, which realizes its flexible and convenient operation. A hand hole is installed on each column stage, which realizes the single-stage column filling and maintenance work without dismantling the entire adsorption column. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a structural diagram of an adsorption column that is easy to install and disassemble;

[0019] Figure 2 This is the diagram of the multi-well plate I;

[0020] Figure 3 This is the diagram of the porous plate II;

[0021] Figure 4 It is the water cap orifice plate diagram;

[0022] Figure 5 For the Peeping Glass diagram;

[0023] Figure 6 It is the cross-sectional connection diagram of the column and the upper and lower heads;

[0024] In the figure: 1-50 mesh screen; 2-hand hole; 3-porous plate I; 4-peep mirror; 5-porous plate II; 6-lifting ear; 7-water cap orifice plate; 8-overflow pipe; 9-feed distributor; 10-discharge collector; 11-circle welding. DETAILED DESCRIPTION

[0025] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0026] according to Figure 1 The adsorption column is composed of the lower head, the first column, the second column, the third column, the fourth column, and the upper head from bottom to top. The height of each column is 650mm (excluding flanges and sealing rings at the connection), and the height of the upper and lower heads is 100mm. The total height of the adsorption column is 2900mm, the tower wall thickness is 6mm, and the material is 316L stainless steel. The adsorption column is divided into two sections, consisting of four tower plates. The upper and lower sections are separated by removable orifice plates (5 pieces, which play a supporting role, and the thickness of the orifice plates is 6mm). The center of the orifice plate is a screen, and rubber sealing gaskets are placed between the tower plates. The upper and lower end covers are pressed tightly to achieve sealing.

[0027] The upper section consists of an upper head, a third-level column, and a fourth-level column. The third-level column and the fourth-level column are not removable, but the orifice plate and the like in the main body are removable; the lower section consists of a first-level column, a second-level column, and a lower head. The first-level column and the second-level column are not removable, but the orifice plate and the like in the main body are removable.

[0028] The accessories on and inside the adsorption column are: 50-mesh screen 1, hand hole 2, porous plate I 3, peep mirror 4; porous plate II 5, lifting ear 6, water cap orifice plate 7, overflow pipe 8, feed distributor 9, discharge collector 10, circle weld 11.

[0029] 50 mesh screen 1: 3mm thick, used to isolate adsorption materials.

[0030] Hand hole 2: The diameter is 160mm, welded to the cylinder near the adsorption column end, and connected with a flange (diameter 200mm) away from the adsorption column end. It is located on the same side of the adsorption column, and the center of the hand hole is 250mm away from the center of each upper orifice plate. The hand hole is 90° to the peephole. There are 4 hand holes on the entire adsorption column.

[0031] Perforated plate I3: The outer diameter is 438 mm, the thickness is 6 mm, the small holes on the plate are arranged in a regular hexagon, the inner diameter of the small holes is 20 mm, and the distance between the two holes is 35 mm. A 50-mesh wire mesh 1 is spot-welded on the perforated plate to play a supporting role. The perforated plate I3 is detachable.

[0032] Sightglass 4: The outer diameter near the adsorption column end is 150mm and is welded to the column. The outer diameter away from the adsorption column end is 100mm and is connected by a flange. The distance between the flange and the column is 50mm. It is used to observe the situation inside the column. There are 2 sightglass holes on the adsorption column, located at the top (fourth level) and the bottom (first level), respectively, and the center distance from the fourth and first level orifice plates is 150mm.

[0033] Perforated plate II 5: The outer diameter is 520 mm, the thickness is 7 mm, the small holes on the plate are arranged in a regular hexagon, the inner diameter of the small holes is 20 mm, and the distance between the two holes is 35 mm. A 50-mesh wire mesh 1 is spot-welded on the perforated plate to play a supporting role. Perforated plate II 5 is detachable.

[0034] Lifting ear 6: welded with the column, used for lifting or moving the adsorption column, located on the same side of the hand hole. There are 2 pairs of lifting ears on the adsorption column. The center of the hole of the lifting ear 6 is 50mm from the upper end and 210mm from the lower end of the column (excluding the head).

[0035] Water cap orifice plate 7: The outer diameter is 520mm, the thickness is 9mm, the small holes on the plate are arranged in a regular hexagon, the inner diameter of the small holes is 25mm, and the distance between the two holes is 65mm. A 50-mesh screen 1 is installed on the water cap orifice plate to play a supporting role. The water cap orifice plate 7 and the 50-mesh screen 1 are both detachable.

[0036] Overflow pipe 8: used for gas discharge and observation of whether the adsorption column is filled with liquid, externally connected to a DN 10 stainless steel flange.

[0037] Feed distributor 9: It adopts a circulating plate injection structure, which is conducive to fluid dispersion, evenly distributes the liquid in the exchange column, maintains a balanced flow rate, and is externally connected to a DN 15 stainless steel flange.

[0038] Discharge collector 10: adopts the inverted collection cover structure. The fluid first enters the collection chamber and then flows back into the annular collection cover. It can cooperate with the feed distributor to maintain uniform flow of the fluid. It is externally connected to a DN 15 stainless steel flange.

[0039] Circle weld 11: used to support the porous plate Ⅰ3, with a width of 10mm and a thickness of 16mm, welded on the column.

[0040] Filling of fibrous adsorbent material (wet method): Figure 1 Take the filling order as an example, the filling order is from bottom to top, and each level of filling is required to be uniform and compacted.

[0041] (1) Accurately weigh the required fibrous adsorbent material using an electronic platform scale, place the fibrous adsorbent material in a bucket of appropriate volume, and soak it in distilled water (tap water can be used instead if distilled water is not available) for 30 minutes. A single adsorption column is filled with 40 kg of filler. A single column has four levels, and each level has 10 kg of filler.

[0042] (2) Install gaskets, water cap orifice plates, etc. on the lower end of the adsorption column, connect the flange to the first-stage column, tighten the connecting bolts, place the water cap orifice plate 7 and 50-mesh screen 1 (spot welded on the water cap orifice plate 7) on it, and then fill the accurately weighed wet fibrous adsorption material into the column. The filling work of the first-stage column is completed;

[0043] (3) Place the porous plate I3 (with 50 mesh screen 1 spot welded on it) on the welding ring of the lower end column, fill the accurately weighed wet fibrous adsorbent material into the cylinder, place 50 mesh screen 1 (spot welded on the porous plate I) and porous plate I3 on ​​it, and the filling work of the second-stage column is completed, and the lower end column is filled with the fibrous adsorbent material;

[0044] (4) The upper column is filled with fibrous adsorption material in a similar manner to the lower column. Install gaskets, porous plate II5, 50-mesh screen 1 (spot welded on the water cap plate 7), and gaskets on the upper end of the adsorption column, connect the fourth-stage column with flanges, tighten the connecting bolts, and then fill the column with accurately weighed wet fibrous adsorption material. The filling of the fourth-stage column is completed.

[0045] (5) Place the porous plate I3 (with 50 mesh screen 1 spot welded on it) on the welding ring of the upper column, fill the accurately weighed wet fibrous adsorbent material into the cylinder, place 50 mesh screen 1 (spot welded on the porous plate I3) and porous plate I3 on ​​it, and the filling work of the third-level column is completed, and the upper column is filled with fibrous adsorbent material;

[0046] (6) The upper and lower end columns of the second and third stage columns are connected by flanges by installing gaskets, porous plate II 5, and 50-mesh wire mesh 1 (spot welded on porous plate II).

[0047] Removal of adsorption materials: When the adsorption performance of the fibrous adsorption material does not meet the required value, the fibrous adsorption material needs to be replaced. The order of removing the fibrous adsorption material is from top to bottom. Remove the flange connecting the second and third columns, split the adsorption column into upper and lower sections, remove the gasket, porous plate Ⅱ5 and 50-mesh screen 1; take the upper end as an example, remove the fibrous adsorption material in the third column; remove the porous plate Ⅰ3 and 50-mesh screen 1 from the welding ring; remove the fibrous adsorption material in the fourth column; remove the flange connecting the upper head and the upper column; the operation process of the lower column is similar to that of the upper column. If the adsorption performance of the fibrous adsorption material in the adsorption column reaches the required value, when it is necessary to replace or overhaul a certain level of the fibrous adsorption material, without removing the entire adsorption column, remove and load the fibrous adsorption material through the hand hole and perform overhaul and maintenance.

[0048] An adsorption column that is easy to disassemble, the adsorption column includes an adsorption column body, a flange, a head, a porous plate, a peephole, a hand hole, a lifting lug, etc. The height of the adsorption column consists of three parts: the height of the adsorption material layer, the height of the upper water cushion layer, and the height of the bottom drainage area. The height of the adsorption material layer is determined according to the amount of wastewater to be treated during design. The higher the adsorption material layer, the higher the utilization rate of the exchange capacity of the adsorption material, and the better the effluent water quality; but the higher the adsorption material layer, the greater the resistance loss and the increased investment. The material of the adsorption column is selected according to the water quality characteristics of the wastewater. In order to facilitate observation of the situation inside the column, organic glass material can be selected. The adsorption column body adopts a cylindrical structure, divided into upper and lower sections, and consists of four tower plates. The upper and lower sections are separated by a detachable orifice plate, and the center of the orifice plate is a detachable screen. Rubber sealing gaskets are placed between the tower plates, and the sealing is achieved by pressing the upper and lower end covers. The bottom base plate is densely covered with small holes with a diameter of 2-3mm, and the top is open. There are sealing ring grooves on the bottom and top support plates.

[0049] According to the water quality characteristics and treatment conditions of the company's wastewater, the designed annual treatment capacity of the adsorption column is 500 cubic meters / year. The designed adsorption column has a diameter of 450mm, a height of 3265mm (including legs), a tower wall thickness of 6mm, and a material of 316L stainless steel; the hand hole is connected by a flange, the flange diameter is 280mm, the outer diameter of the hand hole is 160mm; the diameter of the sight glass is 150mm. The adsorption column is divided into two upper and lower column levels, consisting of four tower plates, and the upper and lower column levels are separated by a detachable partition. The design of a detachable screen in the center of the partition and the installation of a hand hole on each column layer belong to the protection scope of the present invention.

Claims

1. An adsorption column that is easy to install and disassemble, Features: From bottom to top, they are lower head, first-level column, second-level column, third-level column, fourth-level column, upper head. The third-level column and fourth-level column cannot be disassembled, the first-level column and second-level column cannot be disassembled, a water cap orifice plate is provided between the lower head and the first-level column, a porous plate I is provided between the first-level column and the second-level column, a porous plate II is provided between the second-level column and the third-level column, a porous plate I is provided between the third-level column and the fourth-level column, and a porous plate I is provided between the fourth-level column and the A porous plate II is arranged between the upper heads, and 50-mesh screens are arranged on the water cap orifice plate, porous plate I and porous plate II. Hand holes are arranged on the same side of the first-level column, the second-level column, the third-level column and the fourth-level column, and sight glasses are arranged on the same side of the first-level column and the fourth-level column. Ears are arranged on the same side of the hand holes of the first-level column and the fourth-level column, an overflow pipe is arranged on the upper head, a feed distributor is arranged on the lower head, a discharge collector is arranged on the upper head, and a circle weld is arranged at the porous plate I.

2. The adsorption column that is easy to install and disassemble according to claim 1, Features: The total height is 2900mm and the material is 316L stainless steel.

3. The adsorption column that is easy to install and disassemble according to claim 1, Features: The thickness of 50 mesh screen is 3mm.

4. The adsorption column that is easy to install and disassemble according to claim 1, Features: The hand hole diameter is 160mm.

5. The adsorption column that is easy to install and disassemble according to claim 1, Features: The outer diameter of the porous plate I is 438 mm, the thickness is 6 mm, the small holes on the plate are arranged in a regular hexagon, the inner diameter of the small holes is 20 mm, the distance between the two small holes is 35 mm, and a 50-mesh wire mesh is spot-welded on the porous plate I.

6. The adsorption column that is easy to install and disassemble according to claim 1, Features: The outer diameter of the porous plate II is 520 mm, the thickness is 7 mm, the small holes on the plate are arranged in a regular hexagon, the inner diameter of the small holes is 20 mm, the distance between the two small holes is 35 mm, and a 50-mesh wire mesh is spot-welded on the porous plate II.

7. The adsorption column that is easy to install and disassemble according to claim 1, Features: The outer diameter of the water cap orifice plate is 520mm, the thickness is 9mm, the small holes on the plate are arranged in a regular hexagon, the inner diameter of the small holes is 25mm, the distance between the two small holes is 65mm, and a 50-mesh wire mesh is installed on the water cap orifice plate.

8. The adsorption column that is easy to install and disassemble according to claim 1, Features: The feed distributor adopts a circulating plate injection structure.

9. The adsorption column that is easy to install and disassemble according to claim 1, Features: The discharging collector adopts an inverted collecting cover structure.

10. The adsorption column that is easy to install and disassemble according to claim 1, Features: The circle weld has a width of 10mm and a thickness of 16mm, and is welded between the first-level column and the second-level column, and between the third-level column and the fourth-level column.

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