阅读说明：本技术 一种用于畜禽粪沼气的多效净化提纯装置 (A multiple-effect purification device for animal manure marsh gas ) 是由 张冬青 牛晓君 黄续崟 张荔 李霞 王雅婷 余成华 于 2019-11-04 设计创作，主要内容包括：本发明公开了一种用于畜禽粪沼气的多效净化提纯装置,包括壳体,设置在壳体内用于沼气脱水的脱水模块,以及设置在壳体内用于对沼气综合提纯的提纯模块；脱水模块包括第一除水装置和第二除水装置；提纯模块包括第一除臭装置、第二除臭装置和综合提纯装置；第一除臭装置、第一除水装置、第二除臭装置、第二除水装置、综合提纯装置依次连接；本发明整体结构设计合理,采用储水模块与提纯模块交替连接处理,对畜禽粪沼气能够有效地做到除臭、提纯的目的；同时所采用的结构占地面积较小、制造成本较低,更适用于较小规模的畜禽粪沼气的提纯处理。(The invention discloses a multi-effect purification device for livestock and poultry manure biogas, which comprises a shell, a dehydration module arranged in the shell and used for dehydrating the biogas, and a purification module arranged in the shell and used for comprehensively purifying the biogas; the dehydration module comprises a first dehydration device and a second dehydration device; the purification module comprises a first deodorization device, a second deodorization device and a comprehensive purification device; the first deodorization device, the first dewatering device, the second deodorization device, the second dewatering device and the comprehensive purification device are sequentially connected; the invention has reasonable integral structure design, adopts the water storage module and the purification module to be connected and processed alternately, and can effectively realize the purposes of deodorization and purification on the livestock and poultry manure methane; meanwhile, the adopted structure has the advantages of small occupied area and low manufacturing cost, and is more suitable for purifying and treating livestock and poultry manure biogas in a small scale.)

1. A multi-effect purification device for livestock and poultry manure biogas comprises a shell (10), a dehydration module (1) arranged in the shell (10) and used for dehydrating the biogas, and a purification module (2) arranged in the shell (10) and used for comprehensively purifying the biogas; characterized in that the dewatering module (1) comprises a first dewatering device (11) and a second dewatering device (12); the purification module (2) comprises a first deodorization device (21), a second deodorization device (22) and an integrated purification device (23);

the first deodorization device (21), the first water removal device (11), the second deodorization device (22), the second water removal device (12) and the comprehensive purification device (23) are connected in sequence;

the shell (10) comprises a condensation chamber (101) and a conventional chamber (102); the condensation cavity (101) and the conventional cavity (102) are arranged in parallel;

the first deodorization device (21) is installed on the outer side of the condensation cavity (101), the first deodorization device (21) comprises an air inlet groove (211), a plurality of containing bottles (212) and a mounting plate (213), the containing bottles (212) are arranged on the outer side of the condensation cavity (101) in parallel through the mounting plate (213), an air inlet end of the air inlet groove (211) is connected with the bottom of each containing bottle (212) through an air guide pipe, an air outlet end of the air inlet groove (211) is connected with the top of each containing bottle (212) through the air guide pipe, and ferric hydroxide or ferric oxide solution is contained in each containing bottle (212);

the first water removal device (11) is arranged inside the condensation cavity (101), and the first water removal device (11) comprises an installation plate (111), a condensation pipe (112) and a drainage tank (113); 2-5 mounting plates (111) are arranged, wherein the 2-5 mounting plates (111) are arranged at the upper end and the lower end of the interior of the condensation cavity (101) at intervals from top to bottom on one side of the interior of the condensation cavity (101), and one side of the interior of the condensation cavity (101) is divided into S-shaped loops by the mounting plates (111); the condensation pipes (112) and the drainage grooves (113) are multiple, and each condensation pipe (112) is arranged on the mounting plate (111) up and down corresponding to one drainage groove (113) in the horizontal plane; the condensation pipe (112) is connected with external condensation equipment;

the second deodorization device (22) and the second dewatering device (12) are sequentially arranged in parallel with the first dewatering device (11) in the condensation cavity (101); the integrated purification device (23) is arranged inside the conventional cavity (102).

2. The multi-effect purification device for livestock and poultry manure biogas as claimed in claim 1, characterized in that a heat insulation layer is clamped on the shell of the condensation chamber (101), and the heat insulation layer is made of aluminum foil extruded heat insulation plate.

3. The multiple-effect purification device for livestock manure biogas as recited in claim 1, characterized in that said second deodorizing means (22) comprises a mounting frame, and a wood chip sheet placed on the mounting frame; the wood plate is covered with a layer of ferric oxide.

4. The multi-effect purification device for livestock manure biogas as recited in claim 1, characterized in that said second water removal device (12) comprises a cubic grid-shaped adsorption bed carrier (121), a desiccant placed on the adsorption bed carrier (121), and a regeneration means (122) for regenerating the desiccant; the drying agent adopts silica gel, and the regeneration equipment (122) adopts a high-pressure compressor; and the second dewatering device (12) is connected with the second deodorizing device (22) through an air guide funnel (220), and the air guide funnel (220) is formed by welding 4 stainless steel plates in an isosceles trapezoid structure.

5. The multi-effect purification device for livestock and poultry manure biogas as claimed in claim 4, wherein the regeneration method of the drying agent is specifically as follows: and compressing the high-pressure drying gas by using a high-pressure compressor, and then contacting the compressed high-pressure drying gas with a drying agent for 20-25 min.

6. The multi-effect purification device for livestock manure biogas as recited in claim 1, characterized in that said integrated purification device (23) comprises a pressurizing device (231) and a cellulose acetate membrane (232), said pressurizing device (231) pressurizing the biogas passing through said cellulose acetate membrane (232).

7. The multi-effect purification device for livestock and poultry manure biogas as claimed in claim 1, characterized in that there are 2-5 mounting plates (111).

Technical Field

The invention relates to the technical field of biogas purification equipment, in particular to a multi-effect purification device for livestock and poultry manure biogas.

Background

With the rapid development of livestock and poultry breeding industry, the pollution of livestock and poultry breeding waste to the environment exceeds the total pollution of industrial and urban domestic sewage to the environment, a large amount of livestock and poultry breeding pollutants which need to be treated urgently seriously affect the local ecological environment, and cause the ecological environment to deteriorate. The biogas engineering is a system engineering integrating fecal sewage treatment, biogas production and resource utilization, and is a main means for intensive farm fecal sewage treatment at present.

Biogas, as the name implies, is the gas in the wetland of a marsh. From the scientific definition point of view, the methane is a combustible gas produced by the fermentation of various organic substances under the conditions of air isolation (reduction conditions) and proper temperature and pH value through microorganisms. Biogas is a secondary energy source and is a renewable energy source.

The existing collection and purification devices are large-scale process devices, and are designed for biogas plants, so that the problems of complex process flow, large occupied area and high investment cost exist, and the purification devices are not suitable for purification treatment of livestock manure biogas. In addition, the livestock manure biogas continuously enters fresh livestock manure in the fermentation container, so the biogas continuously produced by the livestock manure biogas is bound to have heavy odor.

Disclosure of Invention

Aiming at the problems, the invention provides the multi-effect purification device for the livestock and poultry manure biogas, which has the advantages of simple process, small occupied area and lower cost.

The technical scheme of the invention is as follows: a multi-effect purification device for livestock and poultry manure biogas comprises a shell, a dehydration module arranged in the shell and used for dehydrating the biogas, and a purification module arranged in the shell and used for comprehensively purifying the biogas; the dehydration module comprises a first dehydration device and a second dehydration device; the purification module comprises a first deodorization device, a second deodorization device and a comprehensive purification device;

the first deodorization device, the first dewatering device, the second deodorization device, the second dewatering device and the comprehensive purification device are sequentially connected;

the shell comprises a condensation cavity and a conventional cavity; the condensation cavity and the conventional cavity are arranged in parallel;

the first deodorization device is arranged on the outer side of the condensation cavity and comprises an air inlet groove, a plurality of containing bottles and a mounting plate, the containing bottles are arranged on the outer side of the condensation cavity in parallel through the mounting plate, the air inlet end of the air inlet groove is connected with the bottom of each containing bottle through an air guide pipe, the air outlet end of the air inlet groove is connected with the top of each containing bottle through an air guide pipe, and ferric hydroxide or ferric oxide solution is contained in each containing bottle;

the first water removal device is arranged in the condensation cavity and comprises an installation plate, a condensation pipe and a drainage tank; 2-5 mounting plates are arranged, the 2-5 mounting plates are arranged at the upper end and the lower end of the interior of the condensation cavity at intervals at the upper part and the lower part of one side of the interior of the condensation cavity, and the mounting plates divide one side of the interior of the condensation cavity into S-shaped loops; the number of the condenser pipes and the number of the water drainage grooves are multiple, and each condenser pipe is arranged on the mounting plate up and down corresponding to one water drainage groove horizontal plane; the condensation pipe is connected with external condensation equipment;

the second deodorization device and the second dewatering device are sequentially arranged in parallel with the first dewatering device in the condensation cavity; the comprehensive purification device is arranged in the conventional cavity.

Furthermore, a heat insulation layer is clamped on a shell of the condensation cavity, and the heat insulation layer is an aluminum foil extrusion molding heat insulation plate; the heat preservation layer is added, so that the temperature (low temperature) in the condensation cavity can be effectively reserved for a long time, and the load of an external condensation device can be reduced in continuous operation.

Further, the second deodorizing device comprises a mounting rack and a wood sheet piece placed on the mounting rack; a layer of ferric oxide is covered on the wood plate; the wood chip is covered with a layer of ferric oxide, so that the contact area is larger than that of directly adopting ferric oxide, and the absorption of hydrogen sulfide can be effectively improved.

Further, the second water removal device comprises a cubic grid-shaped adsorption bed carrier, a desiccant placed on the adsorption bed carrier, and regeneration equipment for regenerating the desiccant; the drying agent adopts silica gel, and the regeneration equipment adopts a high-pressure compressor; the second water removal device is connected with the second deodorization device through an air guide funnel, and the air guide funnel is formed by welding 4 stainless steel plates in an isosceles trapezoid structure; the biogas is led to the second water removal device from the biogas passing through the second deodorization device by the air guide funnel for secondary water treatment, so that the water content in the biogas can be greatly reduced.

Further, the regeneration method of the drying agent specifically comprises the following steps: and compressing the high-pressure drying gas by using a high-pressure compressor, and then contacting the compressed high-pressure drying gas with a drying agent for 20-25 min.

Further, the comprehensive purification device comprises a pressurizing device and a cellulose acetate membrane, wherein the pressurizing device is used for pressurizing methane passing through the cellulose acetate membrane; the cellulose acetate membrane can separate polar molecules such as carbon dioxide, residual water vapor and residual hydrogen sulfide, and further ensures the purification rate of the methane.

Furthermore, still be provided with exhaust treatment device on the conventional cavity, exhaust treatment device includes physical adsorption filter bed and photocatalytic degradation filter bed, photocatalytic degradation filter bed provides the light source by outside uv equipment, and the waste gas after the separation loops through behind photocatalytic degradation filter bed, the physical adsorption filter bed and discharges.

Compared with the prior art, the invention has the beneficial effects that: the invention has reasonable integral structure design, adopts the water storage module and the purification module to be connected and processed alternately, and can effectively realize the purposes of deodorization and purification on the livestock and poultry manure methane; according to the invention, the first deodorization device, the first water removal device, the second deodorization device, the second water removal device and the comprehensive purification device are adopted to sequentially carry out primary deodorization, then carry out primary water removal, then carry out secondary deodorization, and then carry out secondary water removal, and finally separate residual water, residual hydrogen sulfide and other polar molecules, so that the problem that the livestock and poultry manure methane is odorous can be effectively solved; meanwhile, the adopted structure has the advantages of small occupied area and low manufacturing cost, and is more suitable for purifying and treating livestock and poultry manure biogas in a small scale.

Drawings

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

FIG. 2 is a sectional view of the inside of embodiment 1 of the present invention;

FIG. 3 is a schematic view of the internal structure of embodiment 2 of the present invention;

FIG. 4 is a sectional view of the inside of embodiment 2 of the present invention;

the device comprises a dehydration module 1, a shell 10, a condensation cavity 101, a conventional cavity 102, a first water removal device 11, a mounting plate 111, a condensation pipe 112, a drainage tank 113, a second water removal device 12, an adsorption bed carrier 121, a regeneration device 122, a purification module 2, a first deodorization device 21, an air inlet tank 211, a holding bottle 212, a mounting plate 213, a second deodorization device 22, an air guide funnel 220, a comprehensive purification device 23, a pressurization device 231, a cellulose acetate membrane 232, an exhaust gas treatment device 3, a physical adsorption filter bed 31 and a photocatalytic degradation filter bed 32.

Detailed Description