Dimethylaminoethanol waste gas collector

Abstract

The utility model discloses a dimethylaminoethanol waste gas collector, which belongs to the technical field of waste gas collection and structurally comprises a gas suction frame, a gas suction top cylinder fixedly communicated with the top of the gas suction frame, a gas delivery pipe fixedly communicated with the top end of the gas suction top cylinder, a plurality of chutes arranged on the lower surface of the gas suction frame and two limiting grooves arranged on the inner walls of the chutes. A plurality of sets of air inlet holes are formed in the circumferential side face of the air suction bottom cylinder, outer frames are fixedly installed at the bottoms of the four circumferential side faces of the air suction frame, movable plates are in sliding fit with the inner sides of the outer frames, and a plurality of extrusion plates are fixed to one sides of the movable plates. According to the dimethylaminoethanol waste gas collector disclosed by the embodiment of the utility model, the air suction top cylinder and the air suction bottom cylinder are matched for use, so that the capacity of capturing dimethylaminoethanol waste gas is improved, the waste gas collecting effect is improved, and a worker can conveniently open the feeding hole to observe the internal condition and feed raw materials into a reaction kettle.

Description

Technical Field

[0001] The utility model relates to the technical field of waste gas collection, in particular to a dimethylaminoethanol waste gas collector. Background Art

[0002] Dimethylaminoethanol is an organic chemical drug, a colorless and volatile liquid with an ammonia smell, and its boiling point is 134.6°C. Dimethylaminoethanol is obtained by ammoniating dimethylamine and ethylene oxide, followed by distillation, rectification, and dehydration. The toxicity intensity of dimethylaminoethanol belongs to medium toxicity and is widely used in many fields, including medicine, coatings, resins, polyurethane foam plastics, water treatment, etc.

[0003] Since dimethylaminoethanol liquid is volatile and toxic, waste gas needs to be collected during the use of dimethylaminoethanol and the collected waste gas is sent to the waste gas treatment system. Existing waste gas collection devices for dimethylaminoethanol are generally suspended above the reaction kettle and collected through a gas collection hood. However, this waste gas collection device cannot completely cover the feeding port of the reaction kettle. Coupled with the interference of the rotation of the machine in the workshop, the movement of workpieces, and the lateral air flow, the gas collection hood has a poor capture effect on waste gas, resulting in a large amount of gas escaping. Especially during the process of opening the feeding port and putting raw materials into the feeding port, the air flow will be disordered, resulting in some dimethylaminoethanol waste gas not rising with the air flow into the gas collection hood, leading to waste gas diffusion, which pollutes the workshop air and endangers the health of workers. Content of the Utility Model

[0004] In order to solve the above deficiencies in the prior art, the purpose of the utility model is to provide a dimethylaminoethanol waste gas collector. The combined use of the suction top cylinder and the suction bottom cylinder of the dimethylaminoethanol waste gas collector improves the capture ability of dimethylaminoethanol waste gas, improves the waste gas collection effect, and is convenient for workers to open the feeding port to observe the internal situation and put raw materials into the reaction kettle.

[0005] The technical solution adopted by the utility model to solve its technical problems is as follows:

[0006] A dimethylaminoethanol waste gas collector is provided, which includes a suction frame. A suction top cylinder is fixedly communicated with the top of the suction frame. A gas transmission pipe is fixedly communicated with the top end of the suction top cylinder. A fan is fixedly installed on the outer side of the gas transmission pipe.

[0007] The lower surface of the air suction frame is provided with a plurality of sliding grooves, and two limiting grooves are provided on the inner groove walls of the sliding grooves. An air suction bottom cylinder is slidably fitted in the sliding grooves. Two limiting blocks are fixed to the top of the circumferential side surface of the air suction bottom cylinder, and the limiting blocks are slidably fitted in the limiting grooves. A spring is fixed between the limiting blocks and the inner bottom wall of the limiting grooves. A plurality of groups of air inlet holes are provided on the circumferential side surface of the air suction bottom cylinder. A plurality of communicating pipes are fixedly connected to the top of the air suction top cylinder, and the bottom ends of the communicating pipes are fixedly connected to the top ends of the sliding grooves;

[0008] Outer frames are fixedly installed at the bottoms of the four circumferential side surfaces of the air suction frame. A movable plate is slidably fitted inside the outer frames. A plurality of pressing plates are fixed to one side of the movable plate, and one end of the pressing plate slidably penetrates through the air suction frame and abuts against the side surface of the air suction bottom cylinder.

[0009] Further, a plurality of groups of the air inlet holes are vertically arranged on the side surface of the air suction bottom cylinder, and the air inlet holes face the inner side of the air suction frame. A rubber pad is fixed to the bottom end of the air suction bottom cylinder.

[0010] Further, a collecting pipe is fixedly connected to the bottom end of the communicating pipe. A plurality of branch pipes are fixedly connected to the collecting pipe, and one end of the branch pipe penetrates through the air suction frame and is connected to the top of the sliding groove.

[0011] Further, a group of second guiding rods are fixed to one side of the movable plate. One end of the second guiding rod slidably penetrates through the outer frame. A bolt column is rotatably connected to one side of the movable plate. One end of the bolt column penetrates through the outer frame and is threadedly connected to the outer frame.

[0012] Further, one end of the pressing plate is an arc-shaped end face, and rubber pads are fixed to the arc-shaped end faces. A knob is fixed to one end of the bolt column.

[0013] Further, a suspension plate is fixed to the upper surface of the air suction frame. The bottom end of the air suction top cylinder penetrates and is fixed on the suspension plate. A lifting cylinder is slidably fitted inside the air suction top cylinder. A closing plate is fixedly sleeved on the circumferential side surface of the bottom of the lifting cylinder, and the closing plate is slidably fitted inside the air suction frame. An electric push rod is fixedly installed on the circumferential side surface of the air suction top cylinder through a bracket. The output end of the electric push rod slidably penetrates through the suspension plate and is fixedly connected to the upper surface of the closing plate.

[0014] Further, a group of first guiding rods are fixed to the upper surface of the closing plate. The top ends of the first guiding rods slidably penetrate through the suspension plate. A sealing pad is fixed to the circumferential side surface of the closing plate, and the closing plate is located at the top of the inner side surface of the air suction frame.

[0015] Compared with the prior art, the beneficial effects of the present utility model are:

[0016] 1. For the dimethylaminoethanol waste gas collector exemplified by the present utility model, through the sliding fit between the suction bottom cylinder and the sliding groove, the bottom ends of several suction bottom cylinders can be made to contact the irregular surface of the reaction kettle feed inlet, covering the reaction kettle feed inlets of different specifications. Several suction bottom cylinders can block the lateral air flow, reducing the interference of the lateral air flow on waste gas collection. In addition, during the process of the suction top cylinder absorbing waste gas, a vertically upward air flow will be generated, and the waste gas escaping due to air flow interference around will be sucked into the suction bottom cylinder through the air inlet holes. The combined use of the suction top cylinder and the suction bottom cylinder improves the capture ability of dimethylaminoethanol waste gas and the waste gas collection effect.

[0017] 2. For the dimethylaminoethanol waste gas collector exemplified by the present utility model, through the threaded connection between the bolt column and the outer frame, rotating the bolt column can push the movable plate closer to the suction frame direction. By the pressing plate pressing the side wall of the suction bottom cylinder, the suction bottom cylinder can be fixed in the sliding groove, enabling several telescoped suction bottom cylinders to be quickly shaped and fixed.

[0018] 3. For the dimethylaminoethanol waste gas collector exemplified by the present utility model, by starting the electric push rod, the closing plate can be quickly lifted, opening the top of the suction frame, facilitating the staff to open the feeding port to observe the internal situation and put raw materials into the reaction kettle. During this process, the bottom end of the suction top cylinder absorbs waste gas from the top, and the suction bottom cylinder can absorb waste gas from the bottom, without affecting the collection of dimethylaminoethanol waste gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] By reading the detailed description of the non-restrictive embodiments with reference to the following drawings, other features, purposes and advantages of the present application will become more obvious:

[0020] Figure 1 is the structural schematic diagram of the present utility model;

[0021] Figure 2 is the structural schematic diagram of the partial cross-section of the suction frame of the present utility model;

[0022] Figure 3 is the structural schematic diagram of the suction bottom cylinder of the present utility model;

[0023] Figure 4 is the structural schematic diagram of the suction frame of the present utility model;

[0024] Figure 5 is the structural schematic diagram of the outer frame of the present utility model.

[0025] In the figure, 1. intake frame, 2. closing plate, 3. lifting cylinder, 4. hanging plate, 5. intake top cylinder, 6. electric push rod, 7. first guide rod, 8. air delivery pipe, 9. fan, 10. intake bottom cylinder, 11. sliding groove, 12. limiting groove, 13. limiting block, 14. spring, 15. air inlet hole, 16. rubber pad, 17. connecting pipe, 18. branch pipe, 19. gas collecting pipe, 20. outer frame, 21. movable plate, 22. extrusion plate, 23. second guide rod, 24. bolt column. Detailed implementation manners

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some but not all of the embodiments of the present utility model.

[0027] Generally, the components of the embodiments of the present utility model described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present utility model provided in the drawings is not intended to limit the scope of the claimed present utility model, but merely represents the selected embodiments of the present utility model.

[0028] All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the scope of protection of the present utility model.

[0029] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0030] In the description of the present utility model, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0031] It should be noted that, without conflict, the embodiments in this application and the features in the embodiments can be combined with each other. Additionally, it should be noted that for ease of description, only the parts related to the utility model are shown in the drawings.

[0032] Embodiment: Refer to Figures 1-5 A dimethylaminoethanol waste gas collector shown as follows, which includes an air suction frame 1. A top of the air suction frame 1 is fixedly communicated with an air suction top cylinder 5. A top end of the air suction top cylinder 5 is fixedly communicated with an air delivery pipe 8. A blower 9 is fixedly installed on an outer side of the air delivery pipe 8;

[0033] A lower surface of the air suction frame 1 is provided with a plurality of sliding grooves 11. Inner groove walls of the sliding grooves 11 are provided with two limiting grooves 12. An air suction bottom cylinder 10 is slidably matched in the sliding grooves 11. Two limiting blocks 13 are fixed on a top of a circumferential side surface of the air suction bottom cylinder 10. The limiting blocks 13 are slidably matched in the limiting grooves 12. A spring 14 is fixed between the limiting blocks 13 and an inner bottom wall of the limiting grooves 12. A plurality of groups of air inlet holes 15 are formed on a circumferential side surface of the air suction bottom cylinder 10. A plurality of communicating pipes 17 are fixedly communicated with a top of the air suction top cylinder 5. Bottom ends of the communicating pipes 17 are fixedly communicated with tops of the sliding grooves 11;

[0034] Outer frames 20 are fixedly installed at bottoms of four circumferential side surfaces of the air suction frame 1. A movable plate 21 is slidably matched inside the outer frames 20. A plurality of pressing plates 22 are fixed on one side of the movable plate 21. One ends of the pressing plates 22 slidably penetrate through the air suction frame 1 and abut against a side surface of the air suction bottom cylinder 10.

[0035] When using this collector to collect dimethylaminoethanol waste gas, place the air suction frame 1 directly above the charging port of the reaction kettle and move the air suction frame 1 downward so that the bottom end of the air suction bottom cylinder 10 contacts the irregular surface of the reaction kettle. During this process, different air suction bottom cylinders 10 will vertically slide upward different distances in the sliding grooves 11, and the springs 14 will be stretched. Subsequently, control the movable plate 21 to move closer to the air suction frame 1. By pressing the side wall of the air suction bottom cylinder 10 with the pressing plates 22, the air suction bottom cylinder 10 can be fixed in the sliding grooves 11, enabling the rapid shaping of several telescopic air suction bottom cylinders 10, so that the air suction frame 1 can stably cover the top of the charging port of the reaction kettle;

[0036] After starting the blower 9, a negative pressure will be generated at the bottom end of the air suction top cylinder 5. The waste gas is drawn into the air suction top cylinder 5 by the vertically upward air flow. One end of the air delivery pipe 8 is communicated with a dimethylaminoethanol waste gas treatment system. The waste gas in the air suction top cylinder 5 enters the dimethylaminoethanol treatment system through the air delivery pipe 8. The waste gas escaping due to air flow interference around will be inhaled into the air suction bottom cylinder 10 through the air inlet holes 15, and the waste gas entering the air suction bottom cylinder 10 is collected into the air suction top cylinder 5 through the communicating pipes 17.

[0037] In order to improve the ability of the intake bottom cylinder 10 to collect and transport waste gas, in this embodiment, several groups of intake holes 15 are vertically arranged on the side surface of the intake bottom cylinder 10, and the intake holes 15 face the inner side of the intake frame 1, so that the intake holes 15 can better capture the escaped waste gas. A rubber pad 16 is fixed at the bottom end of the intake bottom cylinder 10, and the rubber pad 16 serves to protect the bottom end of the intake bottom cylinder 10. The bottom end of the connecting pipe 17 is fixedly connected to a collecting pipe 19, and several branch pipes 18 are fixedly connected to the collecting pipe 19. One end of each branch pipe 18 penetrates through the intake frame 1 and is connected to the top of the sliding groove 11.

[0038] In order to better control the lateral sliding of the movable plate 21 inside the outer frame 20, in this embodiment, a set of second guide rods 23 are fixed on one side of the movable plate 21. One end of the second guide rods 23 slidably penetrates through the outer frame 20. One side of the movable plate 21 is rotatably connected to a bolt column 24. One end of the bolt column 24 penetrates through the outer frame 20 and is threadedly connected to the outer frame 20. One end of the pressing plate 22 is an arc-shaped end face, and rubber pads are fixed on the arc-shaped end faces. The setting of the rubber pads can improve the stability of the pressing plate 22 in contacting and fixing the intake bottom cylinder 10. A knob is fixed at one end of the bolt column 24. Through the threaded connection between the bolt column 24 and the outer frame 20, rotating the bolt column 24 can push the movable plate 21 closer to the intake frame 1, so that the pressing plate 22 presses the side wall of the intake bottom cylinder 10, and then the intake bottom cylinder 10 is fixed in the sliding groove 11.

[0039] In order to facilitate the staff to open the feed port to observe the situation inside the reaction kettle and input raw materials into the reaction kettle, in this embodiment, a suspension plate 4 is fixed on the upper surface of the intake frame 1. The bottom end of the intake top cylinder 5 is fixedly penetrated and fixed on the suspension plate 4. A lifting cylinder 3 is slidably fitted inside the intake top cylinder 5. A closing plate 2 is fixedly sleeved on the circumferential side surface of the bottom of the lifting cylinder 3. The closing plate 2 is slidably fitted inside the intake frame 1. An electric push rod 6 is fixedly installed on the circumferential side surface of the intake top cylinder 5 through a bracket. The output end of the electric push rod 6 slidably penetrates through the suspension plate 4 and is fixedly connected to the upper surface of the closing plate 2. A set of first guide rods 7 are fixed on the upper surface of the closing plate 2. The top ends of the first guide rods 7 slidably penetrate through the suspension plate 4. A sealing pad is fixed on the circumferential side surface of the closing plate 2, and the closing plate 2 is located at the top of the inner side surface of the intake frame 1. By starting the electric push rod 6, the closing plate 2 can be quickly lifted, so that the top of the intake frame 1 is opened, the lifting cylinder 3 rises and slides into the inner side of the intake top cylinder 5. The setting of the first guide rods 7 can enable the closing plate 2 to vertically lift. During this process, the bottom end of the intake top cylinder 5 absorbs waste gas from the top, and the intake bottom cylinder 10 can absorb waste gas from the bottom, without affecting the collection of dimethylaminoethanol waste gas.

[0040] The above description is only a preferred embodiment of the present application and an explanation of the applied technical principles. Those skilled in the art should understand that the scope of the utility model involved in the present application is not limited to the technical solutions formed by the specific combination of the above technical features, and should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the inventive concept of the utility model. For example, the technical solutions formed by the mutual replacement of the above features with the technical features (but not limited to) disclosed in the present application that have similar functions.

[0041] Except for the technical features described in the specification, the remaining technical features are well-known to those skilled in the art. To highlight the innovative features of the present utility model, the remaining technical features will not be elaborated herein.

Claims

1. A dimethylaminoethanol waste gas collector, characterized in that, It includes an air suction frame (1), a top of the air suction frame (1) is fixedly communicated with an air suction top cylinder (5), a top end of the air suction top cylinder (5) is fixedly communicated with an air delivery pipe (8), and a blower (9) is fixedly installed on an outer side of the air delivery pipe (8); A lower surface of the air suction frame (1) is provided with a plurality of sliding grooves (11), inner groove walls of the sliding grooves (11) are provided with two limiting grooves (12), an air suction bottom cylinder (10) is slidably fitted in the sliding grooves (11), two limiting blocks (13) are fixed on a top portion of a circumferential side surface of the air suction bottom cylinder (10), the limiting blocks (13) are slidably fitted in the limiting grooves (12), a spring (14) is fixed between the limiting blocks (13) and an inner bottom wall of the limiting grooves (12), a plurality of groups of air inlet holes (15) are formed in the circumferential side surface of the air suction bottom cylinder (10), a plurality of communicating pipes (17) are fixedly communicated with a top of the air suction top cylinder (5), and bottom ends of the communicating pipes (17) are fixedly communicated with tops of the sliding grooves (11); Outer frames (20) are fixedly installed at bottoms of four circumferential sides of the air suction frame (1), a movable plate (21) is slidably fitted inside the outer frames (20), a plurality of pressing plates (22) are fixed on one side of the movable plate (21), and one ends of the pressing plates (22) slidably penetrate through the air suction frame (1) and abut against a side surface of the air suction bottom cylinder (10).

2. The dimethylaminoethanol waste gas collector according to claim 1, wherein The plurality of groups of air inlet holes (15) are vertically arranged on the side surface of the air suction bottom cylinder (10), and the air inlet holes (15) face the inner side of the air suction frame (1), and a rubber pad (16) is fixed at a bottom end of the air suction bottom cylinder (10).

3. The dimethylaminoethanol waste gas collector according to claim 2, characterized in that, A bottom end of the communicating pipe (17) is fixedly communicated with a gas collecting pipe (19), a plurality of branch pipes (18) are fixedly communicated with the gas collecting pipe (19), and one ends of the branch pipes (18) penetrate through the air suction frame (1) and are communicated with tops of the sliding grooves (11).

4. The dimethylaminoethanol waste gas collector according to claim 3, characterized in that, A group of second guide rods (23) are fixed on one side of the movable plate (21), one ends of the second guide rods (23) slidably penetrate through the outer frames (20), a bolt column (24) is rotatably connected to one side of the movable plate (21), and one end of the bolt column (24) penetrates through the outer frames (20) and is threadedly connected to the outer frames (20).

5. The dimethylaminoethanol waste gas collector according to claim 4, wherein One end of the pressing plate (22) is an arc-shaped end face, rubber pads are fixed on the arc-shaped end faces, and a knob is fixed at one end of the bolt column (24).

6. The dimethylaminoethanol waste gas collector according to any one of claims 1-5, characterized in that, A suspension plate (4) is fixed on an upper surface of the air suction frame (1), a bottom end of the air suction top cylinder (5) is fixedly penetrated through the suspension plate (4), a lifting cylinder (3) is slidably fitted inside the air suction top cylinder (5), a closing plate (2) is fixedly sleeved on a bottom circumferential side surface of the lifting cylinder (3), the closing plate (2) is slidably fitted inside the air suction frame (1), an electric push rod (6) is fixedly installed on a circumferential side surface of the air suction top cylinder (5) through a bracket, and an output end of the electric push rod (6) slidably penetrates through the suspension plate (4) and is fixedly connected to an upper surface of the closing plate (2).

7. The dimethylaminoethanol waste gas collector according to claim 6, characterized in that, A group of first guide rods (7) are fixed on an upper surface of the closing plate (2), a top end of the first guide rods (7) slidably penetrates through the suspension plate (4), a sealing gasket is fixed on a circumferential side surface of the closing plate (2), and the closing plate (2) is located at a top of an inner side surface of the air suction frame (1).

Images