Multi-layer filtering device for sodium hypochlorite production

Abstract

The multi-layer filtering device comprises a conveying pipe and a conveying flange, the bottom end of the conveying pipe is fixedly connected with a connecting pipe, the bottom end of the connecting pipe is fixedly connected with an electric push rod, the output end of the electric push rod is fixedly connected with a movable frame, and through holes are evenly formed in the upper side and the lower side of the movable frame. Two mounting grooves are formed in one end of the movable frame, filter screens are in contact with the interiors of the mounting grooves, limiting holes are formed in the two sides of the movable frame, limiting rods are inserted into the limiting holes, the ends of the limiting rods are in contact with the filter screens, and sliding grooves are in contact with the two sides of the movable frame. Through cooperation with the moving frame capable of moving up and down and the filter screen structure, the effects of moving up and down under the action of the electric push rod, detaching the limiting rod when the upper side of the moving frame moves out of the conveying pipe and additionally detaching the filter screen can be achieved while multi-layer filtering is provided, so that the effect of replacing without shutdown is achieved, and the filtering efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to sodium hypochlorite production technical field, concretely relates to a kind of multilayer filter devices for sodium hypochlorite production. BACKGROUND

[0002] The production of sodium hypochlorite is a complex and delicate process, covering raw material preparation, reaction process, separation and purification, finished product preparation and quality control, etc. Generally, the production of sodium hypochlorite uses chlorine gas and sodium hydroxide or sodium hydroxide solution as the main raw material. Under appropriate conditions, chlorine gas and sodium hydroxide solution will undergo a synthesis reaction and generate sodium hypochlorite. The mixture after the reaction contains unreacted raw materials, by-products and other impurities. Through steps such as sedimentation, filtration and evaporation concentration, impurities can be removed to improve the purity of sodium hypochlorite.

[0003] According to the "filtering device for food-grade sodium hypochlorite production" with Chinese patent publication number CN218076796U, the main description is that the driving motor is driven by the cooperation of the positive and negative rotation and the threaded drive shaft to drive the driving plate to move up and down. The first and second filter mechanisms move up and down with the driving plate. When cleaning the first filter mechanism, the driving plate rises to the top of the filter pipe inner cavity. At this time, the first filter mechanism is completely exposed at the upper end of the first mounting slot. At this time, the second filter mechanism is used for filtering. When cleaning the second filter mechanism, the driving plate descends to the bottom of the filter pipe inner cavity. At this time, the second filter mechanism is completely exposed at the lower end of the second mounting slot. At this time, the first filter mechanism is used for filtering. Without stopping production, the first and second filter mechanisms are simple in structure and easy to clean, greatly improving production efficiency. The filter screen in the first and second filter mechanisms is installed and fixed by the spring plunger on the outer frame, so when it is difficult to clean, the filter screen can be directly disassembled and replaced with a new one, greatly improving production efficiency.

[0004] At present, sodium hypochlorite production is usually diluted from stock solution. During the dilution process, white precipitate, suspended matter and other chemical reaction by-products are produced. The white precipitate and suspended matter produced during dilution may be blocked by the filter screen and may stick to the threaded drive shaft, causing rotation to be sluggish and affecting the filtration of sodium hypochlorite.

[0005] Therefore, a multilayer filter device for sodium hypochlorite production is proposed to solve the problem of increased contact time between the threaded drive shaft and the dilution liquid when driving multiple filter screens to move up and down, causing rotation to be sluggish and affecting the filtration efficiency of sodium hypochlorite. SUMMARY

[0006] The utility model wants to solve the technical problem: for driving multiple filter screen up and down movement can cause the contact time of threaded drive shaft and diluent to increase, cause the rotation to be sluggish, influence the problem of the filtering efficiency of sodium hypochlorite, therefore puts forward a kind of multilayer filter device for sodium hypochlorite production.

[0007] The utility model solves technical problem and adopts technical scheme: a kind of multilayer filter device for sodium hypochlorite production, including conveying pipe and conveying flange, the conveying pipe bottom end fixedly connected with adapter pipe, the adapter pipe bottom end fixedly connected with electric push rod, the electric push rod output end fixedly connected with moving frame, the moving frame upper and lower sides are evenly provided with through-hole, the moving frame one end is provided with two installation slot, the installation slot is contacted with filter screen, the moving frame both sides are evenly provided with limit hole, the limit hole is inserted with limit rod, the limit rod end and filter screen contact, the moving frame both sides are contacted with sliding slot, the sliding slot is located in conveying pipe, the adapter pipe inner bottom side is provided with adaptive groove, the adaptive groove is fixedly connected with folding sleeve, the folding sleeve upper end is fixedly connected with moving frame bottom end, adjacent two the moving frame are fixedly connected with baffle.

[0008] As a preferred technical scheme of the utility model, the baffle is provided with a first groove and a spring rod is fixedly connected in the first groove, one end of the spring rod is fixedly connected with a clamping strip, one side of the clamping strip is contacted with a clamping groove, and the clamping groove is located on both sides of the moving frame. By setting the spring rod and the clamping strip, the contact area with the moving frame can be increased, and the sealing effect can be improved.

[0009] As a preferred technical scheme of the utility model, the moving frame is fixedly connected with a clamping plate at the upper end, the clamping plate is fixedly connected with a rubber pad at the bottom side, and the rubber pad is contacted with an operation groove at the bottom side. The operation groove is located on the upper side of the conveying pipe. By setting the clamping plate and the rubber pad, the sealing effect of the conveying pipe can be improved.

[0010] As a preferred technical scheme of the utility model, the moving frame is contacted with a fixed spring at the bottom side, the fixed spring is located in the folding sleeve, and the fixed spring is contacted with the adapter pipe at the bottom side. By setting the fixed spring, the waterproof effect of the folding sleeve can be improved, and the moving end of the electric push rod directly contacted by the folding sleeve under the liquid pressure can be reduced.

[0011] As a preferred technical scheme of the utility model, the moving frame is fixedly connected with a water pump at one side, the output end of the water pump is fixedly connected with the conveying pipe, the input end of the water pump is fixedly connected with a conduit, and the conduit is communicated with the bottom side of the adapter pipe. By setting the water pump and the conveying pipe, the liquid in the adapter pipe can be pumped back into the conveying pipe.

[0012] The utility model has the following advantages: through setting multiple filter screen structures in the conveying pipe, cooperating with the movable frame and filter screen structure which can move up and down, then under the action of electric push rod, up and down movement can be achieved, when the movable frame moves out of the conveying pipe on the upside, the limiting rod can be disassembled, while providing multilayer filtration, the effect of disassembling filter screen can be enhanced, so that the effect of replacing without stopping is achieved, and the filtration efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a three-dimensional structure schematic diagram of a multilayer filter device for sodium hypochlorite production of a preferred embodiment of the utility model;

[0014] Figure 2 It is a side view sectional structure schematic diagram of a multilayer filter device for sodium hypochlorite production of a preferred embodiment of the utility model;

[0015] Figure 3 It is a three-dimensional structure schematic diagram of a movable frame of a multilayer filter device for sodium hypochlorite production of a preferred embodiment of the utility model

[0016] Figure 4 It is a side view structure schematic diagram of a multilayer filter device for sodium hypochlorite production of a preferred embodiment of the utility model;

[0017] Figure 5 It is an enlarged structure schematic diagram of A of a multilayer filter device for sodium hypochlorite production of a preferred embodiment of the utility model.

[0018] The figure mark explanation: 1, conveying pipe; 2, conveying flange; 3, link pipe; 4, electric push rod; 5, movable frame; 6, installation groove; 7, filter screen; 8, limiting hole; 9, limiting rod; 10, sliding slot; 11, adaptive slot; 12, folding cover; 13, baffle; 14, spring rod; 15, clamping strip; 16, clamping groove; 17, clamping plate; 18, operation groove; 19, through hole; 20, fixed spring; 21, guide pipe; 22, water pump. DETAILED DESCRIPTION

[0019] The utility model will be further described below in combination with the drawings.

[0020] Please combine with reference to Figures 1-5The application discloses a kind of multilayer filter devices for sodium hypochlorite production, including conveying pipe 1 and conveying flange 2, conveying pipe 1 bottom end fixedly connected with adapter pipe 3, adapter pipe 3 bottom end fixedly connected with electric push rod 4, electric push rod 4 output end fixedly connected with moving frame 5, electric push rod 4 can drive moving frame 5 to move up and down, so as to reach the effect that two opposite filter screens 7 move up and down, moving frame 5 upper and lower sides are evenly provided with through hole 19, moving frame 5 one end is provided with two installation grooves 6, installation groove 6 is in contact with filter screen 7, filter screen 7 is provided with multiple groups, and the filtering effect is more fine from left to right, both sides of moving frame 5 are provided with limiting hole 8, limiting hole 8 is inserted into limiting rod 9, when moving frame 5 moves to the upside of conveying pipe 1, filter screen 7 can be separated from moving frame 5 by the way of disassembling limiting rod 9, the end of limiting rod 9 is in contact with filter screen 7, both sides of moving frame 5 are in contact with sliding slot 10, sliding slot 10 is located in conveying pipe 1, adaptive groove 11 is provided in the inner bottom side of adapter pipe 3, adaptive groove 11 is fixedly connected with folding sleeve 12, by setting folding sleeve 12, the direct contact of liquid to electric push rod 4 can be reduced, so as to avoid the direct contact of diluent and driving structure, the upper end of folding sleeve 12 is fixedly connected with the bottom end of moving frame 5, adjacent two moving frames 5 are fixedly connected with baffle 13, by setting baffle 13, the sealing effect between conveying pipe 1 and adapter pipe 3 can be increased.

[0021] Wherein, the first recess is provided in the baffle 13, and the spring rod 14 is fixedly connected in the first recess, one end of the spring rod 14 is fixedly connected with the clamping strip 15, the clamping strip 15 is in the form of a right-angled trapezoidal structure, one side of the clamping strip 15 is in contact with the clamping groove 16, the clamping groove 16 is located on both sides of the moving frame 5, by setting the clamping strip 15, the contact surface between the clamping groove 16 and the moving frame 5 can be increased, so as to improve the sealing effect between the conveying pipe 1 and the adapter pipe 3.

[0022] Wherein, the clamping plate 17 is fixedly connected to the upper end of the moving frame 5, the rubber pad is fixedly connected to the bottom side of the clamping plate 17, the operation groove 18 is in contact with the bottom side of the rubber pad, the operation groove 18 is located on the upper side of the conveying pipe 1, by setting the clamping plate 17 and the rubber pad, the sealing property of the clamping plate 17 and the conveying pipe 1 can be increased when the electric push rod 4 is retracted.

[0023] Wherein, the fixed spring 20 is in contact with the bottom side of the moving frame 5, the fixed spring 20 is located in the folding sleeve 12, the bottom side of the fixed spring 20 is in contact with the adapter pipe 3, by setting the fixed spring 20 in the folding sleeve 12, the folding sleeve 12 is supported, so that the folding sleeve 12 can be kept saturated, and the folding sleeve 12 is prevented from directly contacting the output end of the electric push rod 4 due to liquid pressure.

[0024] The water pump 22 is fixedly connected to one side of the moving frame 5, the output end of the water pump 22 is fixedly connected to the conveying pipe 1, the input end of the water pump 22 is fixedly connected to the conduit 21, the conduit 21 is communicated with the bottom side of the connecting pipe 3, the water pump 22 and the conduit 21 are arranged, so that the liquid in the connecting pipe 3 can be pumped out and guided back into the conveying pipe 1.

[0025] Working principle: the sodium hypochlorite stock solution and pure water are input into the conveying pipe 1, then white precipitate, suspended matter and other chemical reaction by-products are generated in the dilution process, then the mixed liquid is removed from the conveying flange 2 on the right side of the conveying pipe 1, after a period of time, the electric push rod 4 is stretched, the moving frame 5 is moved upwards, the used filter screen 7 is moved upwards, the limiting rod 9 in the limiting hole 8 is disassembled, the filter screen 7 on the upper side can be disassembled, so that the production efficiency of sodium hypochlorite is improved.

[0026] The above is only the preferred embodiment of the present application, it should be pointed out that, for those skilled in the art, without departing from the principles of the present application, can make a number of improvements and refinements, these improvements and refinements should also be considered as the protection scope of the present application.

[0027] Other parts not described in the present application are all prior art, so here is not repeated.

[0028] Finally, it should be noted that: the above examples are used to illustrate the technical solutions of the present application, rather than limit them; although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing examples, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A multi-layer filtration device for sodium hypochlorite production, comprising a conveying pipe (1) and a conveying flange (2), characterized in that, The bottom end of the conveying pipe (1) is fixedly connected to a connecting pipe (3), and the bottom end of the connecting pipe (3) is fixedly connected to an electric push rod (4). The output end of the electric push rod (4) is fixedly connected to a moving frame (5). The moving frame (5) has through holes (19) evenly opened on its upper and lower sides. One end of the moving frame (5) has two mounting slots (6). A filter screen (7) is in contact with the mounting slot (6). Limiting holes (8) are opened on both sides of the moving frame (5). The limiting holes (8) are inserted into the limiting holes (8). A limiting rod (9) is connected, and the end of the limiting rod (9) contacts the filter screen (7). Both sides of the moving frame (5) are in contact with the sliding groove (10). The sliding groove (10) is located inside the conveying pipe (1). An adaptation groove (11) is opened on the bottom side of the connecting pipe (3). A folding sleeve (12) is fixedly connected in the adaptation groove (11). The upper end of the folding sleeve (12) is fixedly connected to the bottom end of the moving frame (5). A baffle (13) is fixedly connected between two adjacent moving frames (5).

2. The multi-layer filtration device for sodium hypochlorite production as described in claim 1, characterized in that, The baffle (13) has a first groove and a spring rod (14) is fixedly connected in the first groove. One end of the spring rod (14) is fixedly connected to a locking strip (15). One side of the locking strip (15) contacts a slot (16). The slot (16) is located on both sides of the moving frame (5).

3. The multi-layer filtration device for sodium hypochlorite production as described in claim 2, characterized in that, The upper end of the movable frame (5) is fixedly connected to a card plate (17), and the bottom side of the card plate (17) is fixedly connected to a rubber pad. The bottom side of the rubber pad contacts an operating groove (18), and the operating groove (18) is located on the upper side of the conveying pipe (1).

4. The multi-layer filtration device for sodium hypochlorite production as described in claim 3, characterized in that, The bottom side of the movable frame (5) is in contact with a fixing spring (20), the fixing spring (20) is located inside the folding sleeve (12), and the bottom side of the fixing spring (20) is in contact with the connecting tube (3).

5. A multi-layer filtration device for sodium hypochlorite production as described in claim 4, characterized in that, A water pump (22) is fixedly connected to one side of the movable frame (5). The output end of the water pump (22) is fixedly connected to the delivery pipe (1). The input end of the water pump (22) is fixedly connected to the conduit (21). The conduit (21) is connected to the bottom side of the connecting pipe (3).

Images