CN205528747U - Fermenting installation is used in laboratory - Google Patents

Abstract

The utility model discloses a fermenting installation is used in laboratory belongs to the fermentation equipment field, fermenting installation is used in laboratory include drive arrangement, (mixing) shaft, stirring leaf, discharge gate, heating coil, jar body, natural pond liquid extraction pipe, screw pump, feed inlet, natural pond liquid back flow, gas vent, the utility model discloses at the inside oar formula stirring leaf that sets up of fermentation cylinder, the radial effort of its production has strong shear effect, makes straw raw material's the dispersion and the intensive mixing of straw raw material and natural pond liquid, avoids the material to produce the crust phenomenon, simultaneously, utilize the screw pump to make jar natural pond liquid circulation flow of internal portion, the stirring of formation liquid, mechanical stirring and liquid stirring combined action have improved stirring effect, make and react go on more thorough, effective stirring consumed power that reduces, the utility model discloses simple structure, low cost, convenient operation moreover.

Description

A laboratory fermentation device

technical field

The utility model discloses a laboratory fermentation device, which belongs to the field of fermentation equipment.

Background technique

The use of anaerobic fermentation to produce biogas in the laboratory can provide strong scientific and technical support for the actual biogas production, especially the conclusions obtained from the analysis and experiments done in the laboratory have important guiding significance for the actual production, okay The anaerobic fermentation tank should be stirred to achieve good mass and heat transfer effects, and the power consumption should be low. Commonly used anaerobic fermentation tanks have the disadvantages of insufficient internal stirring and high power consumption. Straw raw materials float after entering the fermentation tank. On the liquid surface, crusting is easy to occur, and large pieces of material cannot be broken, which is not conducive to the continuation of stirring and fermentation reactions.

The methane bacteria group is mainly concentrated in the middle and lower parts of the fermenter. The existing technology is mechanical stirring. It is difficult to stir the methane bacteria in the middle and lower part of the fermenter to the upper part of the fermenter with ordinary mechanical stirring, so that the fermentation in the upper part of the fermenter is not complete, resulting in There is less methane gas, and it causes waste of raw materials. At the same time, the force generated by the machine is easy to cause damage to the methane bacteria in the middle and lower parts of the fermenter, which affects the effect of fermentation.

Therefore, it is necessary to improve the existing laboratory fermentation device, so that the laboratory biogas fermentation device can have a perfect structure and high fermentation efficiency.

Contents of the invention

In order to overcome the problems in the background technology, the utility model provides a laboratory fermentation device, which pretreats the material before fermentation, so that the fermentation effect is better and the fermentation is more complete; a paddle-type stirring blade is arranged inside the fermentation tank , the radial force produced by it has a strong shearing effect, which promotes the dispersion of raw materials and the full mixing of raw materials and biogas slurry, and avoids the phenomenon of crusting of materials; at the same time, the biogas slurry inside the tank is circulated by using a screw pump to form Liquid agitation, the combination of mechanical agitation and liquid agitation improves the agitation effect, makes the reaction more thorough, and effectively reduces the power consumption of agitation; the utility model has the advantages of simple structure, low cost and convenient operation.

In order to achieve the above object, the utility model provides the following technical solutions:

The laboratory fermentation device includes a pretreatment device and a fermenter, and the fermenter includes a driving device, a stirring shaft, a stirring blade, a discharge port, a heating coil, a tank body, a biogas slurry extraction pipe, and a feed port , a biogas slurry return pipe, and an exhaust port; the pretreatment device is connected to the feed port of the fermenter, the drive device is arranged directly above the outside of the tank, and the top of the tank is provided with an exhaust port, stirring The shaft is connected with the driving device, and the stirring shaft is equipped with a stirring blade, which is a paddle-type stirring blade. The bottom side of the tank is provided with a biogas slurry extraction pipe, and the biogas slurry extraction pipe is connected to the biogas slurry return pipe. The lower part of the tank is a The side is provided with a discharge port, the upper side of the tank is provided with a feed port, and the inner wall of the tank is provided with a heating coil.

Further, the stirring blade is installed on the upper part of the tank body.

Further, the pretreatment device and the biogas slurry extraction pipe are respectively provided with a pump body I and a pump body II.

Further, a filter screen is provided at the connection between the biogas slurry extraction pipe and the tank body.

The beneficial effects of the utility model:

The utility model adopts that a pretreatment device is arranged in front of the fermentation tank, and the raw materials are pretreated before fermentation, so that the fermentation effect is better and the fermentation is more complete; a paddle-type stirring blade is arranged inside the fermentation tank, and the radial force generated by it It has a strong shearing effect, promotes the dispersion of raw materials and the full mixing of raw materials and biogas slurry, and avoids the phenomenon of crusting of materials; at the same time, the pump body II is used to circulate the biogas slurry inside the tank to form liquid agitation, and mechanical agitation and biogas slurry are combined. The combined effect of liquid stirring improves the stirring effect, makes the reaction more thorough, and effectively reduces the power consumption of stirring; a filter is installed at the connection between the biogas slurry extraction pipe and the pump body, which can filter the biogas slurry before entering the biogas slurry extraction pipe, The blockage of the biogas slurry extraction pipe is avoided; the utility model has the advantages of simple structure, low cost and convenient operation.

Description of drawings

Fig. 1 is the structural representation of the utility model.

In the figure, 1-pretreatment device, 2-fermentation tank, 3-driving device, 4-stirring shaft, 5-stirring blade, 6-outlet, 7-heating coil, 8-tank, 9-biogas slurry Extraction pipe, 10-feed inlet, 11-biogas slurry return pipe, 12-exhaust port, 13-pump body I, 14-pump body II, 15-filter.

detailed description

In order to make the purpose, technical solutions and beneficial effects of the present utility model clearer, the preferred embodiments of the present utility model will be described in detail below in conjunction with the accompanying drawings, so as to facilitate the understanding of technical personnel.

As shown in Figure 1, the described laboratory fermentation device includes a pretreatment device 1 and a fermenter 2, and the fermenter 2 includes a driving device 3, a stirring shaft 4, a stirring blade 5, a discharge port 6, a heating plate Pipe 7, tank body 8, biogas slurry extraction pipe 9, feed port 10, biogas slurry return pipe 11, exhaust port 12; the pretreatment device 1 is connected to the feed port 10 of the fermenter 2, and the pretreatment device 1 is equipped with a pump body I13 to pretreat the raw materials before fermentation. After the pretreatment is completed, the raw materials enter the tank body 8 from the feed port 10 through the pump body I13, so that the fermentation effect is better and the fermentation is more complete. ;

The drive device 3 is arranged directly above the outside of the tank body 8, the top of the tank body 8 is provided with an air outlet 12, the stirring shaft 4 is connected to the drive device 3, the stirring shaft 4 is provided with a stirring blade 5, and the stirring blade 5 Installed in the upper part of the tank body 8, the stirring blade 5 is a paddle-type stirring blade, and the radial force generated by the stirring blade 5 arranged on the upper part of the tank body has a strong shearing effect, which promotes the dispersion of raw materials and the full mixing of raw materials and biogas slurry. Mixing effect and avoid crusting of materials;

A biogas slurry extraction pipe 9 is provided on the bottom side of the tank body 8, and the biogas slurry extraction pipe 9 is connected to the biogas slurry return pipe 11. The biogas slurry extraction pipe 9 is provided with a pump body II14, and the bottom side of the tank body 8 is provided with a discharge 6, the upper side of the tank body 8 is provided with a feed inlet 10, and the inner wall of the tank body 8 is provided with a heating coil 7, and the biogas slurry at the bottom of the tank body 8 is forced by the pump body II14 to force the biogas slurry inside the tank body 8 Liquid circulation flow forms liquid stirring. The mechanical stirring of paddle stirring blades and the circulating flow of biogas slurry extraction and reflux work together on the biogas slurry to fully mix and stir, which improves the stirring effect, makes the reaction more thorough, and effectively reduces the agitation. Power consumption, the heating coil 7 can heat the raw materials to speed up the fermentation rate;

A filter screen 15 is provided at the connection between the biogas slurry extraction pipe 9 and the tank body, which can filter the biogas slurry before entering the biogas slurry extraction pipe 9, so as to avoid the blockage of the biogas slurry extraction pipe 9; the utility model has simple structure, low cost, and easy operation convenient.

Working process of the present utility model:

The raw materials are pretreated before fermentation. After the pretreatment, the raw materials enter the tank body 8 from the feed port 10 through the pump body I13, and the raw materials enter the tank body 8 through the feed port 10, and the tank body 8 The methane bacteria inside ferment at a certain temperature to produce methane gas, and part of the raw materials float on the liquid surface. The raw materials are crushed by the stirring blade 5 arranged on the stirring shaft 4, and at the same time, the pump body II14 is used to pass the biogas slurry extraction pipe 9 The biogas slurry from the lower part of the tank body 8 is pumped out. Before entering the tank body 8, the filter screen 15 filters the biogas slurry, and returns it to the tank body 8 through the biogas slurry return pipe 11, so that the upper material can also undergo fermentation reaction with methane bacteria. , continuously extracting and refluxing to form liquid reflux stirring, methane gas generated during the fermentation process is discharged and collected through the exhaust port 12 arranged on the upper part of the tank body 8, and the material after the reaction is completed is discharged through the discharge port 6.

The utility model adopts that a pretreatment device is arranged in front of the fermentation tank, and the raw materials are pretreated before fermentation, so that the fermentation effect is better and the fermentation is more complete; a paddle-type stirring blade is arranged inside the fermentation tank, and the radial force generated by it It has a strong shearing effect, promotes the dispersion of raw materials and the full mixing of raw materials and biogas slurry, and avoids the phenomenon of crusting of materials; at the same time, the pump body II is used to circulate the biogas slurry inside the tank to form liquid agitation, and mechanical agitation and biogas slurry are combined. The combined effect of liquid stirring improves the stirring effect, makes the reaction more thorough, and effectively reduces the power consumption of stirring; a filter is installed at the connection between the biogas slurry extraction pipe and the pump body, which can filter the biogas slurry before entering the biogas slurry extraction pipe, The blockage of the biogas slurry extraction pipe is avoided; the utility model has the advantages of simple structure, low cost and convenient operation.

Finally, it is noted that the above preferred embodiments are only used to illustrate the technical solutions of the present utility model without limitation. Although the utility model has been described in detail through the above preferred embodiments, those skilled in the art should understand that it can be described in the form Various changes can be made in the above and in the details without departing from the scope defined by the claims of the present invention.

Claims (4)

1. a use for laboratory installation for fermenting, it is characterized in that: described use for laboratory installation for fermenting includes that pretreatment unit and fermentation tank, described fermentation tank include driving means, shaft, paddle, discharging opening, heating coil, tank body, biogas slurry extraction tube, charging aperture, biogas slurry return duct, air vent；Described pretreatment unit is connected with the charging aperture of fermentation tank, described driving means is arranged on the surface outside tank body, the top of tank body is provided with air vent, and shaft is connected with driving means, and shaft is provided with paddle, paddle is paddle paddle, the bottom side of tank body is provided with biogas slurry extraction tube, and biogas slurry extraction tube connects biogas slurry return duct, and the side, bottom of tank body is provided with discharging opening, the side, top of tank body is provided with charging aperture, and inner tank wall is provided with heating coil.

A kind of use for laboratory installation for fermenting the most according to claim 1, it is characterised in that: described paddle is arranged on the top in tank body.

A kind of use for laboratory installation for fermenting the most according to claim 1, it is characterised in that: it is respectively equipped with the pump housing I and the pump housing II on described pretreatment unit and biogas slurry extraction tube.

A kind of use for laboratory installation for fermenting the most according to claim 1, it is characterised in that: described biogas slurry extraction tube and tank body junction are provided with drainage screen.