CN210635867U

CN210635867U - Sequencing batch sludge SBF high-temperature aerobic fermentation cabin

Info

Publication number: CN210635867U
Application number: CN201921363991.4U
Authority: CN
Inventors: 史东明; 屈利良; 李艳杰
Original assignee: SHANGHAI WATERLY ENGINEERING TECH Ltd
Current assignee: SHANGHAI WATERLY ENGINEERING TECH Ltd
Priority date: 2019-08-21
Filing date: 2019-08-21
Publication date: 2020-05-29
Anticipated expiration: 2029-08-21

Abstract

The utility model discloses a sequencing batch mud SBF high temperature aerobic fermentation cabin, include: the fermentation cabin body comprises a front cabin and a rear cabin which are communicated, the front cabin is a conical cylinder, the rear cabin is a cylindrical cylinder, and the fermentation cabin is inclined at a certain angle along the axis; the front end surface is a feeding and discharging cover which comprises a feeding hole, a discharging hole and an exhaust hole; the periphery of the cabin body of the fermentation cabin is provided with a plurality of aeration heads, and the aeration heads are connected with an air supply system pipeline arranged on the cabin body; the outer part of the cabin body is provided with a gear ring which drives the fermentation cabin to do circular motion; a plurality of first helical blades and second helical blades are distributed in the front cabin and the rear cabin, and the pitch of the first helical blades is smaller than that of the second helical blades. The utility model has small occupied area; the whole fermentation process is carried out in a closed tank body, no waste gas and dust pollution is caused, and unattended operation is realized; fermenting uniformly and fully; high working efficiency and the like, and is widely applied to the process of the sequencing batch aerobic fermentation treatment of the sludge.

Description

Sequencing batch sludge SBF high-temperature aerobic fermentation cabin

Technical Field

The utility model relates to a mud aerobic fermentation field especially relates to a sequencing batch mud SBF high temperature aerobic fermentation cabin.

Background

The sludge is a product in sewage treatment, is rich in organic matters and nutrient substances, and has become a global research hotspot with the deepening of sewage resource research, so that the urban sludge in China has large quantity and poor quality and is very rare in the world; the existing foreign sludge treatment theory and technology cannot practically solve the current special dilemma, and a green low-carbon safe theoretical system and a systematic solution of sludge in China are urgently needed to be formed through scientific and technological innovation.

The sludge resource is more and more paid attention, and the sludge resource energy accords with the current technological development level. The aerobic fermentation of the sludge can efficiently recycle C, N, P in the municipal sludge as resources and can replace part of the requirements of nitrogen and phosphate fertilizers.

The traditional sludge treatment method comprises the following steps: incineration, landfill and land utilization. The incineration process is mostly adopted abroad, but the investment is huge, and the atmospheric pollution is easily caused; landfill is mostly adopted in China, but a large amount of land is occupied, secondary pollution to the environment can be caused, and appropriate treatment modes are selected more and more cautiously along with deep understanding of the defects of the landfill. The land-utilizable technology after sludge disposal comprises an aerobic fermentation technology and an anaerobic digestion technology, and the aerobic fermentation sludge treatment technology is preferentially recommended by comprehensively considering the environmental impact and the investment cost.

The sludge aerobic fermentation process mainly comprises concrete tank type fermentation, reactor fermentation and the like, and has the defects of poor operation environment, easy secondary pollution in the fermentation process, large occupied area, high operation cost and the like, so that the development of the sludge aerobic fermentation technology is limited to a certain extent, the closed high-temperature aerobic fermentation technology is gradually accepted by the market, the closed high-temperature aerobic fermentation technology has the advantages of low investment cost, low operation cost, small land use area, high efficiency, low consumption, continuous and stable operation in the fermentation process and no secondary pollution, the closed high-temperature aerobic fermentation technology is popularized and applied in the technical field of sludge high-temperature aerobic fermentation in China on a large scale, the sludge recycling treatment amount is gradually increased, the sequencing batch sludge aerobic fermentation treatment process is a novel process for meeting the large-scale sludge modular treatment, and the sequencing batch sludge SBF high-temperature aerobic fermentation cabin equipment is developed and developed to meet the requirements of the sequencing batch aerobic fermentation treatment process, ensures the high efficiency, low consumption, stable operation of the fermentation process and no secondary pollution, and has very important significance for the large-scale popularization and application of the sludge high-temperature aerobic fermentation technology in China.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects, the utility model aims to provide a sequencing batch sludge SBF high temperature aerobic fermentation cabin aims at solving the problem that the occupied area is big, the energy consumption is high that current sludge aerobic fermentation equipment exists, improves work efficiency, reduces personnel's input, solves fermentation process secondary pollution, can bring economic benefits and social for the enterprise.

In order to realize the utility model discloses an aim, the technical scheme who adopts is:

a sequencing batch sludge SBF high-temperature aerobic fermentation cabin comprises:

the fermentation cabin comprises a front cabin and a rear cabin which are communicated, the front cabin is a conical cylinder, the rear cabin is a cylindrical cylinder, and the fermentation cabin is inclined at a certain angle along an axis;

the front end face is provided with a feeding and discharging cover, and the feeding and discharging cover comprises a feeding hole, a discharging hole and an exhaust hole;

the periphery of the cabin body of the fermentation cabin is provided with a plurality of aeration heads, and the aeration heads are connected with an air supply system pipeline arranged on the cabin body;

a gear ring is arranged outside the cabin body and drives the fermentation cabin to do circular motion;

the front cabin and the rear cabin are distributed with a plurality of first helical blades and second helical blades, and the pitch of the first helical blades is smaller than that of the second helical blades.

In a preferred embodiment of the present invention, the first and second helical blades are both in a double-logarithmic arrangement.

In a preferred embodiment of the present invention, the connection between the feeding hole and the feeding and discharging hole and the connection between the feeding hole and the discharging hole and the feeding and discharging cover are sealed connections through a sealing gate valve.

In a preferred embodiment of the present invention, the exhaust port is connected to the exhaust pipe flange of the feeding and discharging cover through an exhaust pipe.

In a preferred embodiment of the present invention, a plurality of roller rings are installed outside the fermentation chamber, and the roller rings are used for supporting the fermentation chamber.

In a preferred embodiment of the present invention, a wheel blocking device is further installed on the roller ring to prevent the fermentation chamber from sliding down along the axis direction.

In a preferred embodiment of the present invention, the discharge port is provided with a discharge helical blade inside.

The beneficial effects of the utility model reside in that:

compared with the prior art, the sequencing batch sludge SBF high-temperature aerobic fermentation cabin has small floor area; the whole fermentation process is carried out in a closed tank body, no waste gas and dust pollution is caused, and unattended operation is realized; fermenting uniformly and fully; high working efficiency and the like, and is widely applied to the process of the sequencing batch aerobic fermentation treatment of the sludge.

Drawings

The present invention will be described in detail with reference to the accompanying drawings and examples.

FIG. 1 is a front view of the fermentation tank.

Fig. 2 is a view in the direction a of fig. 1.

Fig. 3 is a sectional view B-B of fig. 2.

Detailed Description

As shown in fig. 1 and 3, a sequencing batch sludge SBF high-temperature aerobic roller fermentation cabin 100,

comprises a feeding and discharging cover 110, a cabin body 120, a roller ring 130, a gear ring 140, a catch wheel roller ring 150, an air supply system pipeline 160, a helical blade 170 positioned at the front end, an aeration head 180 and a helical blade 190 positioned at the rear end;

the fermentation cabin 120 comprises a front cabin 121 and a rear cabin 122 which are communicated, the front cabin 121 is a conical cylinder, the rear cabin 122 is a cylindrical cylinder, and the fermentation cabin 120 inclines at a certain angle along the axis; such that the centerline of the body is at an angle (about 0-5 deg.) to the horizontal centerline and the inlet/outlet cover 110 end of the front section 121 is at a high end 121 a.

The feeding and discharging cover 110 comprises a feeding hole 111 arranged at the upper part, a discharging hole 112 arranged at the lower part and an exhaust hole 113;

the connection parts of the feed inlet and the discharge outlet 111, 112 and the feeding and discharging cover 110 are all connected in a sealing way through a sealing gate valve 114.

Wherein the exhaust port 113 is connected through an exhaust line interface flange 200 installed on the inlet and outlet cover 110, and the odor generated in the fermentation process is sent to an air purification system (not shown in the figure) through an external exhaust line.

A plurality of aeration heads 180 are arranged above and below the chamber body 120 of the fermentation chamber, and specifically, the aeration heads 180 are arranged on the circumference 121b of the front chamber 121 and the circumference direction of the rear chamber 122.

Comprises a plurality of upper aeration heads 181 and lower aeration heads 182 which are arranged in the cabin 120 and distributed along the circumference.

The aeration head 180 is inserted into the cabin 120 from the outside of the cabin 120, the air supply system pipeline 160 is communicated with the

aeration heads

181 and 182, air is sent to the aeration head 180, and the aeration of the lower aeration head 182 and the non-aeration of the upper aeration head 181 of the cabin 120 or the simultaneous aeration of the upper aeration head 181 and the lower aeration head 182 of the cabin 120 can be realized by adjusting the air supply system pipeline 160.

A gear ring 140 is arranged outside the cabin body 120, and the gear ring 140 drives the fermentation cabin 100 to do circular motion; meanwhile, the whole fermentation cabin is supported by the roller ring 130 and the catch wheel roller ring 150, and the catch wheel roller ring 150 is provided with a catch wheel device 151 to prevent the fermentation cabin 100 from sliding downwards along the axial direction;

the cabin 120 is internally provided with double-logarithmic spiral blades, the pitch of the front spiral blade 170 in the conical cabin body of the front cabin 121 is smaller than that of the rear spiral blade 190 in the cylindrical barrel body of the rear cabin 122, and the

spiral blades

170 and 190 in the SBF high-temperature aerobic fermentation cabin positively rotate in the feeding direction and reversely rotate in the loosening, stirring and discharging direction. In addition, a discharging screw blade 210 is installed inside the discharging port 112.

Because of possessing the above structure, the utility model discloses a theory of operation lies in:

the cabin body design of the fermentation cabin 120 fully considers the material state of the cabin body during working, the 111 circles of non-overflowing materials at the feeding hole are used as the calculation basis, and the volume is calculated according to the actual loading capacity of the cabin body; the spiral blade in the cabin body is composed of

spiral blades

170 and 190 and a discharging spiral blade 210, when the cabin body 120 of the fermentation cabin rotates forwards, the materials are lifted by the blades, when the materials are lifted to a certain height, one part of the mixture slides down along the radial direction of the blades, the other part slides down along the direction of the blades, and the double pairs of high and

low blades

170 and 190 and the discharging blade 210 are staggered to mix the mixture.

Claims

1. A sequencing batch sludge SBF high-temperature aerobic fermentation cabin is characterized by comprising:

the front end surface is provided with a feeding and discharging cover which comprises a feeding hole, a discharging hole and an exhaust hole;

2. The sequencing batch sludge SBF aerobic fermentation chamber of claim 1, wherein said first and second helical blades are both double-logarithmic.

3. The sequencing batch sludge SBF high-temperature aerobic fermentation chamber according to claim 1, wherein the connection of the feeding port, the discharging port and the feeding and discharging cover is sealed and connected through a sealing gate valve.

4. The sequencing batch sludge SBF aerobic fermentation chamber of claim 1, wherein said exhaust port is flanged by an exhaust pipe interface installed on said inlet and outlet hood.

5. The sequencing batch sludge SBF aerobic fermentation chamber as claimed in claim 1, wherein a plurality of roller rings are installed on the outer side of the fermentation chamber, and the roller rings are used for supporting the fermentation chamber.

6. The sequencing batch sludge SBF aerobic fermentation chamber as claimed in claim 5, wherein said roller ring is further provided with a catch wheel device for preventing said fermentation chamber from sliding down along the axial direction.

7. The sequencing batch sludge SBF aerobic fermentation chamber as claimed in claim 1, wherein a discharging helical blade is installed inside the discharging port.