CN215387650U

CN215387650U - A environmental protection condensing equipment for urea-formaldehyde resin processing

Info

Publication number: CN215387650U
Application number: CN202022864371.8U
Authority: CN
Inventors: 詹纯
Original assignee: Hunan Maqiao Chemical Co ltd
Current assignee: Hunan Maqiao Chemical Co ltd
Priority date: 2020-12-03
Filing date: 2020-12-03
Publication date: 2022-01-04
Anticipated expiration: 2030-12-03

Abstract

The utility model discloses an environment-friendly condensing unit for urea-formaldehyde resin processing, which comprises a base, wherein a condensing unit for condensing formaldehyde in formaldehyde tail gas generated by urea-formaldehyde resin processing is fixed at the top of the base, a scraping mechanism convenient for collecting condensed liquid formaldehyde is fixed at one end of the condensing unit, an adsorption mechanism for adsorbing residual formaldehyde which is not completely condensed in the tail gas is fixed at one end of the condensing unit, the condensing unit comprises a condensing pipe, an inner cavity, an inlet, an outlet, an air inlet, a liquid outlet and an air outlet, condensing pipes are fixed at the tops of four bases, and the inner cavity is formed in the side wall of each condensing pipe. Greatly reduces the formaldehyde content in the tail gas.

Description

A environmental protection condensing equipment for urea-formaldehyde resin processing

Technical Field

The utility model relates to the technical field of urea-formaldehyde resin processing equipment, in particular to an environment-friendly condensing device for urea-formaldehyde resin processing.

Background

Urea-formaldehyde resin, also known as urea-formaldehyde resin, abbreviated as UF in English, is urea and formaldehyde polycondensed into initial urea-formaldehyde resin under the action of catalyst (alkaline or acidic catalyst), then under the action of curing agent or adjuvant to form insoluble and infusible final-stage thermosetting resin, the cured urea-formaldehyde resin is lighter in color than phenolic resin, translucent in shape, resistant to weak acid and weak base, good in insulating property, excellent in wear resistance and low in price, and is the variety with the largest dosage in adhesive.

And urea-formaldehyde resin can a large amount of tail gas that contains formaldehyde when processing man-hour, and these tail gases if do not get rid of directly through handling, will cause very big harm to the environment, consequently, the processing factory can condense through the formaldehyde of condenser pipe in to tail gas when processing urea-formaldehyde resin, make gaseous state formaldehyde condensation become liquid and then collect, and current formaldehyde condensing equipment utilizes gravity to make the liquid formaldehyde of condensation completion flow out along the condenser pipe inner wall nature mostly, liquid formaldehyde efficiency is collected very slowly to this kind of method, it can be attached to the unable collection of condenser pipe inner wall to have partial liquid formaldehyde simultaneously, current condensing equipment can not thoroughly condense the formaldehyde in the tail gas simultaneously, make in the tail gas residual formaldehyde still discharge to the atmosphere, still can cause harm to the environment. Therefore, an environment-friendly condensing device for processing urea resin is provided.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an environment-friendly condensing device for urea-formaldehyde resin processing, which aims to solve the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides an environmental protection condensing equipment for urea-formaldehyde resin processing, includes the base, the top of base is fixed with carries out the condensing equipment of formaldehyde condensation to the formaldehyde tail gas that urea-formaldehyde resin processing produced, condensing equipment's one end is fixed with the mechanism of getting of scraping of the liquid formaldehyde that the condensation of being convenient for to collect is accomplished, condensing equipment's one end is fixed with carries out absorptive adsorption apparatus to the incomplete residual formaldehyde of condensation in the tail gas.

Preferably, condensing equipment includes condenser pipe, inner chamber, import, export, air inlet, liquid outlet and gas outlet, four the top of base is fixed with the condenser pipe, the inner chamber has been seted up to the lateral wall of condenser pipe, one side of condenser pipe upper end is fixed with the import, one side that the condenser pipe lower extreme kept away from the import is fixed with the export, and exports and the import all is linked together with the inner chamber, one side that the condenser pipe lower extreme is close to the import is fixed with the air inlet, one side that the condenser pipe lower extreme is close to the export is fixed with the liquid outlet, one side that the upper end of condenser pipe is close to the liquid outlet is fixed with the gas outlet.

Preferably, scrape and get mechanism and include screw rod, scraper blade, slide rail, slider and motor, the inner wall of condenser pipe rotates through the bearing and is connected with the screw rod, the one end threaded connection of screw rod has the scraper blade, the slide rail has been seted up to the inner wall symmetry of condenser pipe, the bilateral symmetry of scraper blade is fixed with the slider, slider and slide rail sliding connection, the inner wall sliding connection of scraper blade and condenser pipe, the one end of condenser pipe is fixed with the motor, the one end that the screw rod is close to the motor is passed the condenser pipe and is fixed with the output of motor.

Preferably, adsorption apparatus constructs including solvent pond, formaldehyde absorption solution, gas-supply pipe and air pump, the one end of condenser pipe is provided with the solvent pond, the inside filling in solvent pond has formaldehyde absorption solution, one side that the solvent pond inner wall is close to the condenser pipe is fixed with the gas-supply pipe, the inlet end of gas-supply pipe passes the solvent pond and is linked together through pipe and gas outlet, the top in solvent pond is fixed with the air pump, and the inlet end and the solvent pond of air pump are linked together.

Preferably, a first valve is fixed at the lower end of the liquid outlet.

Preferably, a liquid inlet and outlet pipe is fixed on one side of the lower end of the solvent pool, which is far away from the condensing pipe, and a second valve is fixed at one end of the liquid inlet and outlet pipe.

Compared with the prior art, the utility model has the beneficial effects that:

when the utility model is used, the output end of the circulating cooling equipment is connected at the inlet, the recovery port of the circulating cooling equipment is connected with the outlet, the tail gas is guided into the condensation pipe from the gas inlet, the circulating cooling equipment enables cooling substances to flow through the inner cavity, condensation work is carried out on formaldehyde in the condensation pipe, the condensed formaldehyde is attached to the inner wall of the condensation pipe, the condensed tail gas is discharged from the gas outlet, then enters the gas conveying pipe through the guide pipe and is discharged from the gas outlet end of the gas conveying pipe, further residual formaldehyde in the tail gas is absorbed through formaldehyde absorption solution, the gas pump works at the same time, the tail gas purified in the solvent pool is sucked through the gas inlet end of the gas pump and is discharged from the gas outlet end of the gas pump, after the condensation work is finished, the first valve is opened, the collecting device is connected at the liquid outlet, and then the motor is driven to rotate the screw rod, and then drive the scraper blade to move to one side close to the motor along the slide rail, and then make the scraper blade scrape the liquid formaldehyde on the condenser pipe inner wall, finally make the liquid formaldehyde flow out through the liquid outlet, and when needing to change formaldehyde absorption solution, through opening the second valve, and then discharge formaldehyde absorption solution, through entering the drain pipe and annotating new formaldehyde absorption solution after finishing discharging, make the formaldehyde absorption solution liquid level in the solvent pond exceed the gas-supply pipe bottom end, annotate and finish and close the second valve.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is an overall internal cross-sectional structural view of the present invention;

FIG. 3 is a schematic diagram of a slider position structure according to the present invention.

In the figure: 1. a base; 2. a condensing unit; 21. a condenser tube; 22. an inner cavity; 23. an inlet; 24. an outlet; 25. an air inlet; 26. a liquid outlet; 27. an air outlet; 3. a scraping mechanism; 31. a screw; 32. a squeegee; 33. a slide rail; 34. a slider; 35. a motor; 4. an adsorption mechanism; 41. a solvent pool; 42. a formaldehyde absorbing solution; 43. a gas delivery pipe; 44. an air pump; 5. a first valve; 6. a liquid inlet and outlet pipe; 7. a second valve.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1, the present invention provides a technical solution: the utility model provides an environmental protection condensing equipment for urea-formaldehyde resin processing, includes base 1, base 1's top is fixed with carries out the condensing equipment 2 of formaldehyde condensation to the formaldehyde tail gas that urea-formaldehyde resin processing produced, condensing equipment 2's one end is fixed with the mechanism 3 of getting of scraping of the liquid formaldehyde that is convenient for collect the condensation and accomplishes, condensing equipment 2's one end is fixed with the remaining formaldehyde of the complete condensation of not in to tail gas and carries out absorptive adsorption apparatus 4.

Referring to fig. 2, the condensing unit 2 includes a condensing tube 21, an inner cavity 22, an inlet 23, an outlet 24, an air inlet 25, a liquid outlet 26 and an air outlet 27, the condensing tube 21 is fixed to the top of the four bases 1, the inner cavity 22 is formed in the side wall of the condensing tube 21, the inlet 23 is fixed to one side of the upper end of the condensing tube 21, the outlet 24 is fixed to one side of the lower end of the condensing tube 21, which is far away from the inlet 23, the outlet 24 and the inlet 23 are both communicated with the inner cavity 22, the air inlet 25 is fixed to one side of the lower end of the condensing tube 21, which is close to the inlet 23, the liquid outlet 26 is fixed to one side of the lower end of the condensing tube 21, the air outlet 27 is fixed to one side of the upper end of the condensing tube 21, which is close to the liquid outlet 26, so that formaldehyde in tail gas generated by urea resin production can be condensed conveniently.

Referring to fig. 2 and 3, the scraping mechanism 3 includes a screw 31, a scraper 32, a slide rail 33, a slider 34 and a motor 35, the inner wall of the condenser pipe 21 is rotatably connected with the screw 31 through a bearing, one end of the screw 31 is connected with the scraper 32 through a thread, the slide rail 33 is symmetrically formed on the inner wall of the condenser pipe 21, the slider 34 is symmetrically fixed on two sides of the scraper 32, the slider 34 is slidably connected with the slide rail 33, the scraper 32 is slidably connected with the inner wall of the condenser pipe 21, the motor 35 is fixed on one end of the condenser pipe 21, one end of the screw 31 close to the motor 35 penetrates through the condenser pipe 21 and is fixed with an output end of the motor 35, and liquid formaldehyde condensed on the inner wall of the condenser pipe 21 can be conveniently collected.

Referring to fig. 2, the adsorption mechanism 4 includes a solvent pool 41, a formaldehyde absorption solution 42, a gas pipe 43 and a gas pump 44, the solvent pool 41 is disposed at one end of the condenser pipe 21, the formaldehyde absorption solution 42 is filled in the solvent pool 41, the gas pipe 43 is fixed on one side of the inner wall of the solvent pool 41 close to the condenser pipe 21, the gas inlet end of the gas pipe 43 passes through the solvent pool 41 and is communicated with the gas outlet 27 through a conduit, the gas pump 44 is fixed on the top of the solvent pool 41, and the gas inlet end of the gas pump 44 is communicated with the solvent pool 41, so that the condensed tail gas can be further removed by the formaldehyde.

Referring to fig. 1 and 2, a first valve 5 is fixed at a lower end of the liquid outlet 26, so as to facilitate condensation of formaldehyde and collection of condensed formaldehyde.

Referring to fig. 1 and 2, a liquid inlet and outlet pipe 6 is fixed at one side of the lower end of the solvent pool 41, which is far away from the condensation pipe 21, and a second valve 7 is fixed at one end of the liquid inlet and outlet pipe 6, so that the formaldehyde absorption liquid can be conveniently filled into the solvent pool 41, and the formaldehyde absorption liquid can be conveniently discharged.

The working principle is as follows:

when the device is used, the output end of the circulating cooling device is connected with the inlet 23, so that the recycling port of the circulating cooling device is connected with the outlet 24, the tail gas is guided into the condenser pipe 21 from the gas inlet 25, the circulating cooling device enables cooling substances to flow through the inner cavity 22, condensation work is performed on formaldehyde in the condenser pipe 21, the condensed formaldehyde is attached to the inner wall of the condenser pipe 21, the condensed tail gas is discharged from the gas outlet 27 and then enters the gas conveying pipe 43 through a conduit, the cooled cooling substances are discharged from the gas outlet end of the gas conveying pipe 43, residual formaldehyde in the tail gas is absorbed by the formaldehyde absorption solution 42, the gas pump 44 works, the purified tail gas in the solvent pool 41 is sucked through the gas inlet end of the gas pump 44 and is discharged from the gas outlet end of the gas pump 44, the liquid outlet of the gas pump 44 is opened after the condensation work is completed, the first valve 5 is opened, the collecting device is connected with the liquid outlet 26, and then driving motor 35 for screw 31 rotates, and then drive scraper blade 32 to the one side that is close to motor 35 along slide rail 33 and remove, and then make scraper blade 32 scrape the liquid formaldehyde on the condenser pipe 21 inner wall, finally make liquid formaldehyde flow out through liquid outlet 26, and when needing to be changed formaldehyde absorption solution 42, through opening second valve 7, and then discharge formaldehyde absorption solution 42, discharge and accomplish the back and annotate new formaldehyde absorption solution 42 through advancing drain pipe 6, make formaldehyde absorption solution 42 liquid level in the solvent pond 41 higher than the lowest end of gas-supply pipe 43, the second valve 7 is closed in the completion of filling.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an environmental protection condensing equipment for urea-formaldehyde resin processing, includes base (1), its characterized in that: the top of base (1) is fixed with condensing equipment (2) that carry out the formaldehyde condensation to the formaldehyde tail gas that the urea-formaldehyde resin processing produced, the one end of condensing equipment (2) is fixed with be convenient for collect the liquid formaldehyde of condensation completion scrape get mechanism (3), the one end of condensing equipment (2) is fixed with carry out absorptive adsorption apparatus structure (4) to the remaining formaldehyde of the complete condensation in the tail gas not.

2. The environment-friendly condensing unit for urea-formaldehyde resin processing according to claim 1, characterized in that: the condensing device (2) comprises condensing tubes (21), an inner cavity (22), an inlet (23), an outlet (24), an air inlet (25), a liquid outlet (26) and an air outlet (27), the condensing tubes (21) are fixed at the tops of the four bases (1), an inner cavity (22) is formed in the side wall of the condensation pipe (21), an inlet (23) is fixed on one side of the upper end of the condensation pipe (21), an outlet (24) is fixed on one side of the lower end of the condensing pipe (21) far away from the inlet (23), and the outlet (24) and the inlet (23) are communicated with the inner cavity (22), an air inlet (25) is fixed on one side of the lower end of the condensing pipe (21) close to the inlet (23), a liquid outlet (26) is fixed at one side of the lower end of the condensing pipe (21) close to the outlet (24), an air outlet (27) is fixed at one side of the upper end of the condensing pipe (21) close to the liquid outlet (26).

3. The environment-friendly condensing unit for urea-formaldehyde resin processing according to claim 2, characterized in that: scrape and get mechanism (3) and include screw rod (31), scraper blade (32), slide rail (33), slider (34) and motor (35), the inner wall of condenser pipe (21) rotates through the bearing and is connected with screw rod (31), the one end threaded connection of screw rod (31) has scraper blade (32), slide rail (33) have been seted up to the inner wall symmetry of condenser pipe (21), the bilateral symmetry of scraper blade (32) is fixed with slider (34), slider (34) and slide rail (33) sliding connection, the inner wall sliding connection of scraper blade (32) and condenser pipe (21), the one end of condenser pipe (21) is fixed with motor (35), the one end that screw rod (31) is close to motor (35) is passed condenser pipe (21) and is fixed with the output of motor (35).

4. The environment-friendly condensing unit for urea-formaldehyde resin processing of claim 3, characterized in that: adsorption equipment constructs (4) including solvent pond (41), formaldehyde absorption solution (42), gas-supply pipe (43) and air pump (44), the one end of condenser pipe (21) is provided with solvent pond (41), the inside of solvent pond (41) is annotated formaldehyde absorption solution (42), one side that solvent pond (41) inner wall is close to condenser pipe (21) is fixed with gas-supply pipe (43), the inlet end of gas-supply pipe (43) passes solvent pond (41) and is linked together through pipe and gas outlet (27), the top of solvent pond (41) is fixed with air pump (44), and the inlet end of air pump (44) is linked together with solvent pond (41).

5. The environment-friendly condensing unit for urea-formaldehyde resin processing according to claim 2, characterized in that: and a first valve (5) is fixed at the lower end of the liquid outlet (26).

6. The environment-friendly condensing unit for urea-formaldehyde resin processing of claim 4, wherein: and a liquid inlet and outlet pipe (6) is fixed on one side of the lower end of the solvent pool (41) far away from the condensation pipe (21), and a second valve (7) is fixed at one end of the liquid inlet and outlet pipe (6).