CN202099280U

CN202099280U - Horizontal continuous dry fermentation methane device for straws

Info

Publication number: CN202099280U
Application number: CN 201120219746
Authority: CN
Inventors: 李长生
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-06-27
Filing date: 2011-06-27
Publication date: 2012-01-04
Anticipated expiration: 2021-06-27

Abstract

The utility model belongs to a solid organic waste treatment device giving priority to straws and relates to a horizontal continuous dry fermentation methane device capable of adopting continuous and dry fermentation technologies. The horizontal continuous dry fermentation methane device comprises a horizontal cylindrical tank body; a stirring shaft with a blade, or front and rear stirring semi-shafts with two blades, and a speed reducing motor driving the stirring shaft/semi-shafts to rotate are arranged on the central axis of the horizontal cylindrical tank body; a feeding port connected with a displacement pump is arranged at the front end of the horizontal cylindrical tank body; a gas collecting cover is arranged at the top of the horizontal cylindrical tank body; and a discharge port connected with the displacement pump is arranged at the rear end of the horizontal cylindrical tank body. The horizontal continuous dry fermentation methane device for the straws has high gas production efficiency, saves energy and is convenient for automation, does not cause secondary pollutions and is particularly suitable for bioenergy technology taking the straws as main raw materials.

Description

The horizontal continuous dry fermentation firedamp gas equipment of stalk

Technical field

It is main solid organic waste substances treatment unit that the utility model belongs to the stalk, relates to the horizontal continuous dry fermentation firedamp gas equipment of a kind of stalk that adopts continuous, dried zymotechnique (CDPF).

Background technology

At present, utilizing the biogas fermentation technical finesse is main solid organic waste substances with the stalk, mainly adopts the vertical firedamp gas equipment of impeller pump charging.Because of receiving the liquid pump performance limitations, the dry substance concentration of this device charging (TS%) can only be less than or equal to 10%.For this reason, the one, crushing straw floats into scum silica frost and constantly is piled up in the gas tank at device top, is difficult to remove and be unfavorable for the effusion of biogas.The 2nd, be difficult to scum silica frost is effectively stirred and mixes, so that utilization ratio of raw materials and pond hold factor of created gase is lower.The 3rd, need dissolve 3～4 times of sewage to fermentation raw material weight, increased the heat energy consumption that unnecessary sewage is heated to leavening temperature (about 35 ℃ or 55 ℃), also increased the quantity discharged and the handling charges of natural pond liquid.The 4th, the natural pond liquid of discharging will produce secondary pollution if can not all utilize; Adopt " horizontal mechanical stirring firedamp gas equipment " (patent No. ZL 200520142327.9); Because of not forcing charging and discharging equipment different in the axial array mode with blade, it is interior and constantly wriggle to the back-end to make that dry substance concentration (TS%) is that 20%～40% fermentation raw material is difficult to get into tank body.

Summary of the invention

In order to overcome existing the processing with the stalk is main vertical firedamp gas equipment; Can not increase substantially input concentration; Scum silica frost is difficult to remove and the problem of input concentration can not further be improved in " horizontal mechanical stirring firedamp gas equipment " (patent No. ZL 200520142327.9); The utility model provides a kind of horizontal firedamp gas equipment of continuous, dried zymotechnique, and the pressure that volumetric pump 15 produces can make the dry substance concentration of charging bring up to 20%～40%; The blade of arranging by axial screw 10 constantly rotation stirs fermentation materials up and down and wriggles to tank body 4 rear ends.It is a kind of churned mechanically horizontal cylindricality tank body 4 that has, and front end has the opening for feed 14, the top that link to each other with 1# volumetric pump 15 to have 1～10 gas skirt 5, rear end that the discharge port 9 that links to each other with 2# volumetric pump 8 is arranged and lays respectively at the top or the 1# manhole 6 of rear end or 2# manhole 7 are convenient to the installation and the maintenance of equipment; Being positioned at has a stir shaft 13 or has former and later two to stir semiaxis 16 and be erected on the support 12 through 2～10 chocks 11 on tank body 4 axis; Stir shaft 13 or former and later two stir has 6～42 blades 10 arranging by axial screw on the semiaxis 16; One end of stir shaft 13 or former and later two stirring semiaxis 16 is connected with step-down gear 1 with tank body 4 outer shaft couplings 2 through the sealing socket 3 of tank body 4, and stir shaft 13 or former and later two rotating speeds that stirs semiaxis 16 are equal to or less than 10 rev/mins.The horizontal continuous dry fermentation firedamp gas equipment of stalk that the utility model proposes stirs firedamp gas equipment with the vertical firedamp gas equipment of impeller pump charging and horizontal mechanical and compares; Pond under identical leavening temperature (about 35 ℃ or 55 ℃) holds factor of created gase to be improved 100～200%, practice thrift heat energy 30～70%, not to have natural pond liquid to efflux " secondary pollution " of initiation, the processing that robotization and suitable multiple solid organic waste substances are convenient in operation, and being particularly useful for the stalk is the bioenergy engineering of main raw material.

Description of drawings

Accompanying drawing 1 is structural representations of the utility model with accompanying drawing 2.

Among the figure 1, reducing motor, 2, shaft coupling, 3, sealing socket, 4, tank body, 5, gas skirt, 6, the 1# manhole; 7,2# manhole, 8, the 2# volumetric pump, 9, discharge port, 10, blade, 11, chock; 12, support, 13, stir shaft, 14, opening for feed, 15, the 1# volumetric pump, 16, stir semiaxis.

Embodiment

Embodiment one

In accompanying drawing 1; With the crushing straw is main fermentation raw material; After dissolving quantitative sewage; Squeeze into tank body 4 front ends and drive through shaft coupling 2 and sealing socket 3 under the rotation that has blade 10 stir shafts 13 stirs through opening for feed 14 by 1# volumetric pump 15, fermented product is stirred up and down and constantly wriggles to tank body 4 rear ends at reducing motor 1.Fermented product is heated in stirring, and the biogas of generation is through gas skirt 5 outputs, and biogas residue liquid is discharged through discharge port 9 by 2# volumetric pump 8.Stir shaft 13 is erected on the support 12 through chock 11, and the 2# manhole 7 that is positioned at 1# manhole 6 and the rear end at top is convenient to the installation and the maintenance of equipment.

Embodiment two

In accompanying drawing 2; With the crushing straw is main solid fermentation raw material; After dissolving quantitative sewage; Squeeze into tank body 4 front ends and each drives respectively through shaft coupling 2 and sealing socket 3 with a cover reducing motor 1 under equidirectional rotations stirring of former and later two stirring semiaxis 16 that have blade 10 at front and back ends by 1# volumetric pump 15 through opening for feed 14, fermented product is stirred up and down and constantly wriggles to tank body 4 rear ends.Fermented product is heated in stirring, and the biogas of generation is through gas skirt 5 outputs, and biogas residue liquid is discharged through discharge port 9 by 2# volumetric pump 8.Former and later two stir semiaxis 16 and are erected on the support 12 through chock 11, and the 1# manhole 6 that is positioned at the top is convenient to the installation and the maintenance of equipment.

In accompanying drawing 1 and accompanying drawing 2, the material of the tank body 4 of the utility model can be a structure on steelwork or the reinforced concrete, and lagging facility is arranged.Concrete surfaces in the tank body 4 are all done sealing ply, must not the seepage G&W; Hardware is all brushed protective system.

Claims

1. horizontal continuous dry fermentation firedamp gas equipment of stalk; It is characterized in that tank body (4) is to have a stir shaft (13) that has blade (10) or former and later two stirring semiaxis (16) that has blade (10) and the sealing socket (3) through tank body (4) to be connected with step-down gear (1) with tank body (4) shaft coupling (2) outward on a kind of axis therein and stir shaft (13) or have former and later two stirring semiaxis (16) to be erected at the horizontal cylinder on the support (12) through 2～10 chocks (11); The opening for feed (14) of the useful 1# volumetric pump of front end (15) charging; Gas skirt (5) is arranged at the top, the discharge port (9) of the useful 2# volumetric pump in rear end (8) discharging.

2. the horizontal continuous dry fermentation firedamp gas equipment of stalk according to claim 1, it is characterized in that rotating speed that stir shaft (13) or former and later two stir semiaxis (16) be equal to or less than 10 rev/mins with 6～42 blade (10) by the axial screw arrangement.

3. the horizontal continuous dry fermentation firedamp gas equipment of stalk according to claim 1 is characterized in that 1～10 gas skirt is arranged at the top.