CN110156284B - Sludge fermentation device - Google Patents

Abstract

The invention relates to the technical field of sludge treatment, in particular to a sludge fermentation device, which comprises: the fermentation box is suspended, an opening is formed in the bottom of the fermentation box, and a plurality of bearing plates which are obliquely arranged relative to the vertical direction of the fermentation box are arranged in the fermentation box; the aeration system comprises an air supply system and a pipeline system, the pipeline system comprises an aeration main pipe and an aeration pipe which are communicated with each other, the aeration pipe is arranged at the bottom of the bearing plate, and a plurality of air outlets are formed in the aeration pipe at intervals; put mud mechanism, locate fermentation tank bottom opening, including many parallel horizontal planes evenly set up and mutually parallel's pivot, pivot actuating mechanism, be equipped with broach form baffle in the pivot, thereby pivot actuating mechanism control pivot rotates and drives broach dress baffle and close or open. The sludge fermentation device provided by the invention can effectively ferment a large amount of sludge, improves the treatment efficiency and has good application prospect.

Description

Sludge fermentation device

Technical Field

The invention relates to the technical field of sludge treatment, in particular to a sludge fermentation device.

Background

With the development of the social economy and the improvement of the urban level in China, the urban sewage discharge is continuously increased, the sewage treatment rate is improved year by year, and the sludge is the main solid waste in the urban sewage treatment process, and the organic matters, the nutrient substances and other pollutants in the sludge are basically transferred into the sludge through microorganisms or physical and chemical actions. It is estimated that the sludge yield (80% water content) in China exceeds 6000 ten thousand tons in 2015. The sludge has complex components, is a polymer composed of zoogloea formed by various microorganisms and adsorbed organic matters and inorganic matters, and contains a large amount of water, refractory organic matters, heavy metals, salts, pathogenic microorganisms, parasitic ova and the like. The sludge has higher content of organic matters, nitrogen, phosphorus and other nutrient elements, and can cause great environmental pollution if entering the water environment, and meanwhile, the sludge is also a great resource waste.

If the excess sludge is disposed of improperly, it will have immeasurable serious consequences for the surrounding environment. Unlike anaerobic digestion, the sludge aerobic fermentation has the advantages of short fermentation period, low operation cost and less malodorous gas release, and the land utilization after the high-temperature aerobic fermentation of the sludge becomes one of the main treatment modes of urban sludge in China.

The existing sludge treatment equipment has the problem that the existing fermentation tank for aerobic fermentation of sludge is limited by structural strength and has smaller volume or larger occupied area, and is inconvenient for large-scale sludge treatment. In addition, the industry is in a development stage, has low automation degree and lacks large-scale automated processing equipment. Therefore, an apparatus capable of improving sludge treatment efficiency is a need of industry.

Disclosure of Invention

The invention aims to overcome at least one defect in the prior art and provides a sludge fermentation device which can effectively ferment a large amount of sludge.

In order to solve the technical problems, the invention adopts the following technical scheme:

the utility model provides a sludge fermentation device, including the fermentation tank, be used for carrying out aeration system and being used for letting out the mud mechanism of putting of mud in the fermentation tank to mud aeration system, wherein: the fermentation box is suspended, an opening is formed in the bottom of the fermentation box, and a plurality of bearing plates which are obliquely arranged relative to the vertical direction of the fermentation box are arranged in the fermentation box; the aeration system comprises an air supply system and a pipeline system, wherein the pipeline system comprises an aeration main pipe and an aeration pipe which are communicated with each other, the aeration pipe is arranged at the bottom of the bearing plate, and a plurality of exhaust ports are arranged on the aeration pipe at intervals; the mud discharging mechanism is arranged at the bottom opening of the fermentation tank and comprises a plurality of rotating shafts which are uniformly arranged in parallel with the horizontal plane and are parallel to each other and a rotating shaft driving mechanism, a comb-shaped baffle is arranged on the rotating shaft, and the rotating shaft driving mechanism controls the rotating shaft to rotate so as to drive the comb-shaped baffle to be closed or opened.

According to the invention, the sludge fermentation device is used for carrying out auxiliary bearing by installing the bearing plate in the fermentation tank, so that the bearing capacity of the fermentation tank body can be effectively improved on one hand; on the other hand, the aeration pipe is arranged below the bearing plate, so that the aeration efficiency of the aeration system can be effectively improved. The bottom of the box body is opened, and the mud-placing mechanism is additionally arranged, so that the treated mud can be poured under the condition that the box body does not need to be turned over, the space required by arranging the fermentation device is effectively reduced, and the potential safety hazard caused by pouring the mud is effectively reduced.

Further, the bearing plate is provided with at least two layers, and each layer of bearing plate is arranged in parallel relative to the horizontal plane; the bearing plates in each layer are provided with a plurality of bearing plates, and the inclination directions and the inclination angles of the bearing plates in the same layer are consistent; the bearing plates of two adjacent layers have the same inclination angle and opposite inclination directions. The bearing plate is arranged in the fermentation tank, so that the maximum bearing capacity of the fermentation tank can be improved under the condition that the bottom area is not increased; the obliquely arranged bearing plate can effectively share the pressure of the sludge on the bottom of the tank, so that the structural strength of the tank body is enhanced; when pouring the mud material into the fermentation tank, the mud strikes at first on the bearing plate of the first layer, because the bearing plate slope sets up, and mud landing again is on the bearing plate of next floor, because mud does not all receive the resistance of bearing plate through one deck bearing plate, and reduces the speed that mud falls, shares the pressure that mud caused to the bottom of the case, avoids mud directly dropping to the bottom of the case, produces huge impact.

Further, at least one aeration pipe is arranged at the bottom of each bearing plate, and each air outlet is connected with an aeration head; the aeration dry pipe is arranged on the lateral wall of the outer side of the fermentation tank. An aeration pipe is arranged under each bearing plate, and a plurality of air outlets are arranged on the aeration pipe and connected with the aeration head, so that air injection at each position in the box body can be realized, and fermentation is uniform. The aeration pipes are arranged in the fermentation tank layer by layer and are arranged corresponding to the bearing plates, a main pipe, namely an aeration main pipe, is arranged outside the fermentation tank, and each aeration pipe is connected with the aeration main pipe respectively, so that the consumption of pipelines can be reduced, and the calandria can be tidy.

Further, the rotating shaft driving mechanism comprises a rotating shaft synchronous mechanism which is connected with all the rotating shafts to enable the rotating shafts to synchronously rotate, a rotating mechanism which controls the rotating shafts to rotate, and a vibrating mechanism which controls the rotating shafts to vibrate along the circumferential direction.

Further, the comb tooth baffle comprises a plurality of evenly arranged mud blocking rods, and the length of each mud blocking rod is not greater than the distance between the adjacent rotating shafts.

The mud discharging mechanism is designed through multiple rotating shafts and multiple openings, and the integral structural strength during discharging is improved through the mode that the multiple rotating shafts distribute the pressure of mud to the bottom. When the opening is closed, the rotating mechanism drives the rotating shaft to rotate to enable the comb-tooth-shaped structure to compress the sludge, and the vibrating mechanism is matched to enable part of the sludge to flow out of the gaps between the comb teeth, so that the opening is closed under the condition that the sludge is not required to be pressed back upwards, and after the opening is closed, the sludge cannot flow out of the comb teeth continuously due to the self adhesive force of the sludge, so that the opening is closed.

Further, the air supply system comprises an air compressor, an air storage tank and a heat exchanger, wherein the air compressor is connected with the air storage tank through a pipeline, the air storage tank is connected with the air inlet end of the heat exchanger through a pipeline, and the air outlet end of the heat exchanger is connected with the pipeline system. The air compressor compresses and stores air into an air storage tank, an air outlet end of the air storage tank is connected with a heat exchanger, compressed air enters a heat exchange tube in the heat exchanger, and the compressed air is heated by the heat exchanger; the heated compressed air is conveyed into aeration pipes of all the fermentation tanks, and the sludge in the fermentation tank is sprayed through the aeration heads.

Preferably, the piping is connected to at least one of the fermenters.

Preferably, the sludge fermentation device further comprises a sludge leveling device fixedly arranged above the fermentation tank, the sludge leveling device comprises a linear reciprocating driving device, a guide rail and a frame, the frame is in sliding connection with the guide rail, a plurality of scraping plates are arranged on the frame, and the linear reciprocating driving device is connected with the frame and drives the frame to perform linear reciprocating motion. When the fermentation materials are piled up in the middle of the fermentation tank to form a mountain shape, the scraping plates on the frame push the fermentation materials in the middle to two sides, so that the fermentation materials in the fermentation tank are uniformly distributed, the upper end face of the whole fermentation material is uniform, and the phenomenon that the pressure in the fermentation tank is uneven and the service life of the fermentation tank is influenced is avoided.

Preferably, the sludge fermentation device further comprises a rice hull feeding device arranged above the fermentation tank, the rice hull feeding device comprises a storage bin and a blanking hopper which are mutually communicated, a screw conveyer is arranged at an outlet of the blanking hopper, the screw conveyer comprises a first driving motor, a feeding rotating shaft and a screw plate, the first driving motor is connected with the feeding rotating shaft, and the screw plate comprises a forward screw plate and a reverse screw plate which are arranged on the feeding rotating shaft and push materials to two sides.

Preferably, the sludge fermentation device further comprises a vibrating sludge travelling device arranged on the ground below the fermentation box, and the vibrating sludge travelling device comprises a sludge travelling disc, a vibrating machine, a swinging frame and a fixed support; the mud moving disc is rotationally connected with the swing frame, and the swing frame controls the mud moving disc to incline or be parallel to the horizontal plane; the vibrator controls the mud tray to vibrate.

Compared with the prior art, the invention has the beneficial effects that:

according to the sludge fermentation device, the bearing plate is arranged in the fermentation tank, so that the pressure of sludge on the tank bottom can be effectively shared, and the structural strength of the tank body is enhanced; the aeration pipe and the aeration head are arranged at the bottom of each bearing plate, so that the material can be prevented from directly impacting the aeration pipe and the aeration head to cause damage during charging. The mud discharging mechanism is designed through multiple rotating shafts and multiple openings, and the overall structural strength of the mud discharging mechanism is improved through the mode that the pressure of the mud to the bottom is shared by the multiple rotating shafts. When the opening is closed, the surplus materials in the box are more, the comb-tooth-shaped structure can be used for compressing sludge through the rotation of the rotating shaft, partial sludge flows out of the gaps between the comb teeth in a matched mode, the opening is closed under the condition that the sludge is not required to be pressed back upwards, and after the opening is closed, the sludge cannot continuously flow out of the comb teeth due to the self adhesive force of the sludge, so that the opening is closed. The mud leveling device can level the fermentation materials piled into a mountain shape, can fully utilize the space of the fermentation tank, and avoids uneven pressure in the fermentation tank. The rice hull feeding device can disperse rice hull materials, fully mix sludge and rice hulls, and enable aerobic fermentation to be carried out more fully and uniformly.

Drawings

FIG. 1 is a schematic view of a sludge fermentation apparatus in example 1.

FIG. 2 is a schematic view showing the installation of aeration pipes and aeration heads in the fermentation tank in example 1.

FIG. 3 is a schematic view of the installation of the bearing plate in the fermentation tank in example 1.

Fig. 4 is a schematic view of the installation of the air tank and the heat exchanger in example 1.

Fig. 5 is a schematic diagram of the aeration tank and branch pipe installation in embodiment 1.

FIG. 6 is a schematic view showing the installation of aeration dry pipes on two adjacent rows of fermentation tanks in example 1.

Fig. 7 is a schematic structural view of the mud discharging mechanism in embodiment 1.

Fig. 8 is a schematic view showing a partial structure of the mud discharging mechanism in embodiment 1.

Fig. 9 is a schematic diagram showing a partial structure of the mud discharging mechanism in embodiment 1.

Fig. 10 is a partial sectional view of the rotating mechanism and the vibrating mechanism in embodiment 1.

Fig. 11 is a schematic structural view of the drive shaft in embodiment 1.

Fig. 12 is a schematic structural view of the driven shaft in embodiment 1.

Fig. 13 is an axial sectional view of the rotary shaft in example 1.

FIG. 14 is a top view showing the whole structure of the mud leveling apparatus in example 2.

Fig. 15 is a front view showing the overall structure of the mud flat apparatus in example 2.

Fig. 16 is a partial enlarged view at fig. 15A.

FIG. 17 is a schematic view showing the overall structure of a rice husk feeding apparatus in example 3.

Fig. 18 is a left side view of fig. 17.

Fig. 19 is a schematic view showing the structure of an auger in embodiment 3.

Fig. 20 is a schematic view showing the structure of an auger in example 4.

Fig. 21 is a vibrating slurry transporting device in example 5.

Detailed Description

The invention is further described below in connection with the following detailed description. Wherein the drawings are for illustrative purposes only and are shown in schematic, non-physical, and not intended to be limiting of the present patent; for the purpose of better illustrating embodiments of the invention, certain elements of the drawings may be omitted, enlarged or reduced and do not represent the size of the actual product; it will be appreciated by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

The same or similar reference numbers in the drawings of embodiments of the invention correspond to the same or similar components; in the description of the present invention, it should be understood that, if there is an azimuth or positional relationship indicated by terms such as "upper", "lower", "left", "right", etc., based on the azimuth or positional relationship shown in the drawings, it is only for convenience of describing the present invention and simplifying the description, but it is not indicated or implied that the apparatus or element referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus terms describing the positional relationship in the drawings are merely illustrative and should not be construed as limitations of the present patent, and specific meanings of the terms described above may be understood by those skilled in the art according to specific circumstances.

Example 1

Fig. 1 to 13 show a first embodiment of a sludge fermentation apparatus according to the present invention. The sludge fermentation device comprises a fermentation tank 4a, an aeration system for aerating sludge and a sludge discharge mechanism b for discharging sludge in the fermentation tank, wherein: the bottom of the fermentation tank 4a is suspended, and a plurality of bearing plates 7a which are obliquely arranged relative to the vertical direction of the fermentation tank 4a are arranged inside the fermentation tank 4 a; the aeration system comprises an air supply system and a pipeline system, the pipeline system comprises an aeration main pipe 8a and an aeration pipe 5a which are communicated with each other, the aeration pipe is arranged at the bottom of the bearing plate 7a, and a plurality of air outlets are arranged on the aeration pipe at intervals; the mud discharging mechanism b is arranged at the bottom opening of the fermentation box 8a and comprises a plurality of rotating shafts 1b which are uniformly arranged in parallel with the horizontal plane and are parallel to each other and a rotating shaft driving mechanism, comb-shaped baffles are arranged on the rotating shafts 1b, and the rotating shaft driving mechanism controls the rotating shafts to rotate so as to drive the comb-shaped baffles to be closed or opened. The rotating shaft driving mechanism comprises a rotating shaft synchronous mechanism which is connected with all rotating shafts to enable the rotating shafts to synchronously rotate, a rotating mechanism which controls the rotating shafts to rotate and a vibrating mechanism which controls the rotating shafts to vibrate along the circumferential direction.

As shown in fig. 2 to 4, the air supply system comprises an air compressor 1a, an air storage tank 2a and a heat exchanger 3a, wherein the air compressor 1a is connected with the air storage tank 2a through a pipeline, the air storage tank 2a is connected with the air inlet end of the heat exchanger 3a through a pipeline, and the air outlet end of the heat exchanger 3a is connected with a pipeline system. The air compressor 1a is connected with the air storage tank 2a through a pipeline, the air storage tank 2a is connected with the air inlet end of the heat exchanger 3a through a pipeline, and the air outlet end of the heat exchanger 3a is connected with the aeration pipe 5a through a pipeline; the fermentation tank 4a is internally provided with a plurality of bearing plates 7a which are obliquely arranged relative to the vertical direction of the fermentation tank 4a, the aeration pipe 5a is arranged at the bottom of the bearing plates 7a, and the aeration head 6a is connected with an air outlet of the aeration pipe 5 a. The air compressor 1a compresses and stores air into the air storage tank 2a, an air outlet end of the air storage tank 2a is connected with the heat exchanger 3a, compressed air enters a heat exchange tube in the heat exchanger 3a, and the compressed air is heated by the heat exchanger 3 a; the heated compressed air is conveyed into the aeration pipes 5a of each fermentation tank, and the sludge in the fermentation tank 4a is sprayed through the aeration heads 6 a; in the invention, the aeration pipe 5a is arranged at the bottom of the bearing plate 7a in the fermentation tank 4a, so that when sludge is poured into the fermentation tank 4a from the top of the tank, the sludge impacts on the bearing plate 7a and cannot directly impact on the aeration head 6a and the aeration pipe 5a, thereby effectively protecting the aeration head 6a from being damaged due to the impact of the sludge.

As shown in fig. 3, the bearing plate 7a is provided with at least two layers, and each layer of bearing plate 7a is arranged in parallel relative to the horizontal plane; the bearing plates 7a of each layer are provided with a plurality of bearing plates 7a, and the inclination direction and the inclination angle of the bearing plates 7a of the same layer are consistent; the inclination angles of the bearing plates 7a of two adjacent layers are consistent, and the inclination directions are opposite. The arrangement of the bearing plate 7a in the fermentation tank 4a can improve the maximum bearing capacity of the fermentation tank 4a without increasing the bottom area; the obliquely arranged bearing plate 7a can effectively share the pressure of the sludge on the bottom of the tank, so that the structural strength of the fermentation tank 4a is enhanced; when the sludge is poured into the fermentation tank 4a for feeding, the sludge firstly collides with the bearing plate 7a on the uppermost layer, and the sludge slides down to the bearing plate 7a on the next layer due to the inclined arrangement of the bearing plate 7a, and the falling speed of the sludge is reduced due to the fact that the sludge does not pass through the bearing plate 7a on one layer and is subjected to the resistance of the bearing plate 7a, so that the pressure of the sludge on the tank bottom is shared, the sludge is prevented from directly falling to the tank bottom, and huge collision force is generated.

Wherein, at least one aeration pipe 5a is arranged under each bearing plate 7a, a plurality of air vents are arranged on the aeration pipe 5a at intervals, and each air vent is connected with an aeration head 6a. An aeration pipe 5a is arranged under each bearing plate 7a, and a plurality of air outlets are arranged on the aeration pipe 5a and are connected with the aeration heads 6a, so that air injection at each position in the fermentation tank can be realized, and fermentation is uniform.

As shown in fig. 4, control valves 11a are provided on the pipe connecting the air compressor 1a and the air tank 2a, the pipe connecting the air tank 2a and the heat exchanger 3a, and the pipe connecting the heat exchanger 3a and the aeration pipe 5 a. And a control valve 11a is arranged between the devices, so that the control is convenient, and on the other hand, when one of the devices needs to be overhauled and replaced, the valve can be closed in time to stop the transportation of the compressed air.

Wherein, the air storage tank 2a and each pipeline are provided with a pressure gauge 12a. The pressure gauge 12a is arranged to observe the pressure in the air storage tank 2a and the pipeline in real time, so that safety accidents caused by insufficient air injection or excessive pressure can be avoided.

The fermenting tanks 4a are provided with 8, the 8 fermenting tanks 4a are symmetrically arranged at intervals in two rows, and the air compressor 1a, the air storage tank 2a and the heat exchanger 3a are arranged at one end part of one row of fermenting tanks 4 a. Thus, the calandria is convenient, and the operation personnel can conveniently work and monitor the fermentation condition.

As shown in fig. 6, an aeration dry pipe 8a is provided outside each fermentation tank 4a, the aeration dry pipe 8a is provided on a side wall of the fermentation tank 4a on the side opposite to the other row of fermentation tanks 4a, and the aeration pipe 5a in each fermentation tank 4a is connected to the aeration dry pipe 8a. The aeration pipes 5a are arranged in the fermentation tank 4a layer by layer and are correspondingly arranged with the bearing plates 7a, a main pipe, namely an aeration main pipe 8a is arranged outside the fermentation tank 4a, and each aeration pipe 5a is respectively connected with the aeration main pipe 8a, so that the consumption of pipelines can be reduced, and the calandria can be tidy.

As shown in fig. 5, a ventilation tank 9a is connected to the air outlet end of the heat exchanger 3a, and a plurality of branch pipes 10a are provided on the ventilation tank 9a, and each branch pipe 10a is connected to one aeration main pipe 8a. The heated compressed air is temporarily stored in the aeration tank 9a, a plurality of branch pipes 10a are connected to the aeration tank 9a, each branch pipe 10a is connected to the aeration main pipe 8a of one fermentation tank 4a, and the diversion of the compressed air is realized through the branch pipe 10 a. The branch pipe 10a is also provided with a pressure gauge 12a and a control valve 11a.

Wherein the branch pipe 10a is located between two rows of fermenting tanks 4 a. The branch pipe 10a is arranged between the two rows of fermenting boxes 4a, so that the consumption of pipelines can be reduced, and the cost is saved; in addition, the calandria can be tidy and beautiful.

As shown in fig. 7 to 13, the mud discharging mechanism includes: a frame including a rectangular frame; the rotating shafts 1b which are arranged on the same edge of the parallel frame are uniformly arranged and rotated on the frame through bearings, the rotating shafts 1b are provided with a plurality of long mud blocking rods 11b which are arranged on the parallel rotating shafts 1b in the same radial direction, and the long mud blocking rods 11b are uniformly arranged along the axial direction of the rotating shafts 1b to form a comb-tooth-shaped structure; a rotating mechanism 2b for controlling the rotation of the rotating shaft 1b along the circumferential direction, comprising a rotating driving mechanism 21b and a rotating shaft synchronizing mechanism 22b connected with the rotating shaft 1b; the vibration mechanism 3b that controls the rotation shaft 1b to swing in the circumferential direction includes a vibration driving device 31b and a cam mechanism 32b.

The mud discharging mechanism is designed in a multi-opening mode through the multi-rotating shafts 1b, and the integral structural strength during discharging is improved in a mode that the pressure of mud to the bottom is shared through the multi-rotating shafts 1 b. When the surplus material in the box is more and the opening is closed, the rotating mechanism 2b drives the rotating shaft 1b to rotate, so that the comb-tooth-shaped structure compresses sludge, part of sludge flows out of the gaps between the comb teeth in cooperation with the vibrating mechanism 3b, the opening is closed under the condition that the sludge does not need to be pressed back upwards, and after the opening is closed, the sludge cannot continuously flow out of the comb teeth due to the self adhesive force of the sludge, so that the opening is closed. The invention has reasonable design and simple structure, and is suitable for the mud discharging operation of a large-scale fermentation tank.

As shown in fig. 7 to 12, the rotating shaft synchronization mechanism 22b includes a synchronization rod 221b axially disposed perpendicular to the rotating shaft 1b, a plurality of synchronization swing arms 222b axially rotatably connected with the synchronization rod 221b are disposed on the synchronization rod 221b, the synchronization swing arms 222b are in one-to-one correspondence with the positions of the rotating shaft 1b, and each synchronization swing arm 222b is fixedly connected with the corresponding rotating shaft 1 b. In order to avoid the influence of sludge on the synchronizing mechanism, a rotating shaft synchronizing mechanism 22b is arranged at one side of the tail end of the rotating shaft 1b, which is positioned outside the frame.

As shown in fig. 8, 11 and 12, the rotating shaft 1b is divided into a driving shaft 1.1b and a driven shaft 1.2b, the shaft end of the driving shaft 1.1b is connected with a rotating mechanism 2b and a vibrating mechanism 3b, the rotating shafts 1b outside the driving shaft 1.1b are driven shafts 1.2b, the rotating mechanism 2b controls the driving shaft 1.1b to rotate, and the driven shaft 1.2b is driven to rotate through a rotating shaft synchronizing mechanism 22 b. The driving shaft 1.1b is arranged in the middle of the frame, which is beneficial to balancing the stress of the rotating shaft synchronous mechanism 22 b.

As shown in fig. 8 to 10, the rotation driving mechanism 21b includes a rotation plate 211b rotatably coupled to the driving shaft 1.1b, and a rotation motor 212b for controlling rotation of the rotation plate 211b; the vibration driving device 31b is fixedly arranged on the rotating disc 211b; the cam part of the cam mechanism 32b is fixedly connected to the output end of the vibration driving device 31b, and the driven part is fixedly connected to the shaft end of the driving shaft 1.1 b. The rotation motor 212b drives the rotation disk 211b to rotate, thereby driving the vibration mechanism 3b to rotate together with the driving shaft 1.1 b.

The cam mechanism 32b includes an eccentric wheel 321b, a first rocker arm 322b and a second rocker arm 323b, the eccentric wheel 321b is fixed at the output end of the vibration driving device 31b, a rotating pair of the eccentric wheel 321b is rotationally connected with one end of the first rocker arm 322b, the other end of the first rocker arm 322b is rotationally connected with one end of the second rocker arm 323b, and the other end of the second rocker arm 323b is fixedly connected with the shaft end of the driving shaft 1.1 b. The eccentric wheel 321b, the first rocker arm 322b and the second rocker arm 323b perform eccentric rotation in a matched manner, so that the driving shaft 1.1b performs reciprocating vibration relative to the rotating disc 211 b.

Further, the rotation motor 212b and the vibration driving device 31b are a speed reduction motor or a speed reducer assembly to which the motor is directly connected.

As shown in fig. 11 to 13, the long mud-guard bars 11b have a length smaller than the interval length between the adjacent rotating shafts 1 b. The rotating shaft 1b is provided with a plurality of short mud-guard bars 12b, the short mud-guard bars 12b are parallel to the long mud-guard bars 11b and are arranged on the other side of the rotating shaft 1b, and a short mud-guard bar 12b is arranged on the opposite extension line of the symmetrical axis between any two adjacent long mud-guard bars 11 b. The short mud-guard bars 12b have a length smaller than the long mud-guard bars 11b, and the short mud-guard bars 12b have a diameter smaller than the length of the interval between adjacent long mud-guard bars 11 b. The short mud-guard bars 12b form a reverse comb structure, and are staggered with the long mud-guard bars 11b of the adjacent rotating shafts. When the mud discharging operation is closed, the long mud blocking rod 11b and the short mud blocking rod 12b are matched to carry out load, so that the contact area between the mud and the gaps of the comb tooth structures is reduced, and the outflow of the mud is reduced.

Example 2

Fig. 14 to 16 show a second embodiment of the present invention, which is similar to embodiment 1, except that in this embodiment, the sludge fermentation apparatus further includes a sludge leveling device c fixedly provided above the fermentation tank 4 a. As shown in fig. 14 to 16, the mud leveling device c comprises a guide rail 2c, a frame 1c and a linear reciprocating driving device, the device is arranged at an opening at the upper end of the fermentation tank, the linear reciprocating driving device is connected with the frame 1c, two linear guide rails 2c are symmetrically arranged at two sides of the frame 1c, a chute is arranged in the guide rail 2c, supporting plates 16c are arranged at two sides of the frame 1 respectively, the supporting plates 16c are inclined by 45-65 degrees relative to the plane of the frame 1c, the frame 1c and the guide rail 2c are separated by the supporting plates 16c to form a gap, and as the guide rail 2c is directly arranged at an opening at the end face of the fermentation tank, the frame 1c and the side wall of the fermentation tank form a gap, and abrasion caused by touching the side wall of the fermentation tank in the movement process of the frame 1c is avoided. The end face of the supporting plate 16c is provided with a plurality of wheel shafts 4c, the wheel shafts 4c are arranged in the sliding grooves, the sliding grooves play a role in guiding and limiting, and the sliding grooves limit the movement of the wheel shafts 4c in the vertical direction and the horizontal direction, so that the wheel shafts 4c can only slide along the sliding groove direction, and the wheel shafts 4c are ensured not to derail, and the use is safe and stable.

In this embodiment, the frame 1c is composed of a transverse plate 12c and a vertical plate 11c, the transverse plate 12c and the vertical plate 11c are mutually perpendicular to form a plurality of rectangular square grids 14c, the rectangular square grids 14c are spliced to form a grid structure, a reinforcing plate 13c is arranged at the tail end of the frame 1c, the linear reciprocating driving device is connected with the middle part of the reinforcing plate 13c, the integral strength of the frame 1c can be increased through the reinforcing plate 13c, when the linear reciprocating driving device drives, the reinforcing plate 13c is directly stressed to disperse thrust, the frame 1c is prevented from being deformed due to the fact that the linear reciprocating driving device directly pushes the transverse plate 12c and the vertical plate 11c, and acting points of the linear reciprocating driving device are located in the middle part of the reinforcing plate 13c, so that pushing is more stable and stable.

In the device, at least one scraping plate 15c is arranged in each square 14c, wherein in the embodiment, one scraping plate 15c perpendicular to the plane of the frame 1c is arranged in each square 14c, and the scraping plates 15c are welded on the inner corners of the square 14c, so that the welding area can be increased, the fixing strength of the welding area is improved, and in the device, the whole frame 1c is fully distributed by the arrangement of the scraping plates 15c, the whole fermentation box plane can be covered, and the fermentation material is finally pushed to be flat.

Because this frame 1c is the grid structure, consequently when empting the fermentation material and entering into the fermenting case, the fermentation material can directly enter into the fermenting case inside through grid structure, can not receive frame 1 c's the stop, and the fermentation material also can not cause great impact force to frame 1 when empting into simultaneously, consequently can start this device simultaneously at empting the fermentation material, can not cause the influence.

In the linear reciprocating drive device motor, the speed reducer 33c, the crank 32c and the connecting rod 31c which are adopted in the embodiment, the motor is connected with the speed reducer 33c, the crank 32c is connected with the speed reducer 33c, and two ends of the connecting rod 31c are respectively connected with the crank 32c and the frame 1c in a rotating way. The speed reducer is used for improving torque and reducing rotating speed so as to ensure that enough power is used for pushing fermentation materials.

In addition, because the humidity of the fermented material is higher, the guide rail 2c, the frame 1c and the scraping plate 15c are all provided with an anti-rust coating so as to prolong the service life of the device.

The device is arranged at the top end opening of the fermentation tank, covers the opening of the whole fermentation tank, when the fermentation material is led into the fermentation tank, the motor is synchronously started, the motor is used as a power source to drive the frame 1c to perform linear reciprocating motion along the direction of the guide rail 2c, the fermentation material is poured into the fermentation tank through the frame 1c, when the fermentation material is piled up to form a mountain shape in the middle of the fermentation tank, the scraper 15c on the frame 1c pushes the fermentation material in the middle to two sides, so that the fermentation material in the fermentation tank is uniformly distributed, the upper end face of the whole fermentation material is uniform, and the uneven pressure in the fermentation tank is avoided, and the service life of the fermentation tank is influenced.

Example 3

Fig. 17 to 19 show a third embodiment of the present invention, which is similar to embodiment 1, except that in this embodiment, the sludge fermentation apparatus further comprises a rice hull feeding means provided above the fermentation tank 4 a. As shown in fig. 17 to 19, the rice hull feeding device comprises a storage bin 1d and a blanking hopper 3d, wherein the storage bin 1d and the blanking hopper 3d are connected through a conveying mechanism, the conveying mechanism comprises a first conveying mechanism 21d and a second conveying mechanism 22d, the first conveying mechanism 21d and the second conveying mechanism 22d are identical in structure and are all screw conveyors, each screw conveyor comprises a conveying cylinder, a second driving motor 221d and a rotating shaft, the rotating shaft is arranged in the conveying cylinder, rotating blades are welded on the rotating shaft, and the second driving motor 221d is connected with the rotating shaft to drive the rotating shaft to rotate. A conveying inlet 222d and a conveying outlet 223d are respectively arranged on two sides of the conveying cylinder, wherein the conveying inlet 222d is arranged on the upper end face of the conveying cylinder, the conveying outlet 223d is arranged on the lower end face of the conveying cylinder, the conveying outlet 223d of the first conveying mechanism 21d is communicated with the conveying inlet 222d of the second conveying mechanism 22d, and the installation angle between the first conveying mechanism 21d and the second conveying mechanism 22d can be adjusted according to the actual installation position, and in the embodiment, the first conveying mechanism 21d and the second conveying mechanism 22d are mutually perpendicular to each other so as to realize 90-degree adjustment of the rice husk conveying direction. The conveying inlet 222d of the first conveying mechanism 21d is communicated with the storage bin 1d, the conveying outlet 223d of the second conveying mechanism 22d is communicated with the blanking hopper 3d charging barrel 45d, the rotating blades and the inner wall of the charging barrel form a plurality of conveying chambers, rice hull materials enter the conveying chambers and are pushed to the conveying outlet 223d through the rotating shaft pushing the rotating blades to rotate, and the rice hull materials are pushed to the conveying outlet 223d from the conveying inlet 222 d. In the device, each conveying cavity is independent and not communicated, so that rice husk can be conveyed into a mechanism of the next stage only when the conveying mechanism works, and the rice husk can not be conveyed to the next stage when the machine is stopped, thereby being convenient for maintenance. In this embodiment, the storage bin 1d is an inverted trapezoidal funnel, and an opening is formed in the upper end surface of the storage bin 1d for pouring rice husk.

In this embodiment, the blanking hopper 3d is a trapezoidal funnel, the upper end surface of the trapezoidal funnel is communicated with the conveying outlet 223d of the second conveying mechanism 22d, the rice hull conveying outlet 223d falls into the middle part of the trapezoidal funnel, the storage space of the blanking hopper 3d can be excessively enlarged by the trapezoidal funnel, the discharging area is enlarged, and the mixing area of the sludge and the rice hull is enlarged. An auger 4d is arranged at the outlet of the blanking hopper 3d, and the auger 4d is detachably arranged at the outlet of the blanking hopper 3d. In the use, can change the screw conveyer 4d of adjustment different specifications according to practical application to realize the adjustment of different ejection of compact rates, in addition because screw conveyer 4d can dismantle, more convenient maintenance. The screw conveyor 4d comprises a feed cylinder 45d, a first driving motor 41d, a feed rotating shaft 46d and a screw plate 44d, wherein a feed inlet 42d is formed in the upper end of the feed cylinder 45, a discharge outlet 43d is formed in the lower end of the feed cylinder 45d, the feed inlet 42d is communicated with the outlet of the blanking hopper 3d, the screw plate 44d comprises a forward screw plate and a reverse screw plate, the forward screw plate and the reverse screw plate are respectively arranged on two sides of the center of the feed rotating shaft 46d, and the working pushing directions of the forward screw plate and the reverse screw plate are opposite. A cavity 441d is formed between two adjacent spiral plates 44d, and the opposite cavities 441d are respectively communicated with the feed inlet 42d and the discharge outlet 43d. In the present apparatus, when the screw conveyor 4d is not started, it can be used as a shut-off valve, the feed port 42d and the discharge port 43d are partitioned by the cavity 441d formed by the screw plate 44d, and the feed port 42d and the discharge port 43d are not communicated with each other when the screw plate 44d is rotated to any angle. When the screw conveyor 4d is started, when the cavity rotates to a position communicated with the feeding cavity 441d, rice hull materials in the blanking hopper 3d are filled in the corresponding cavity 441d, the screw plate 44d is driven to rotate through the feeding rotating shaft 46d, the rice hull materials in the cavity 441d are conveyed to the discharging hole 43d from the feeding hole 42d, and when the cavity 441d filled with the rice hull materials moves to be communicated with the discharging hole 43d, the rice hull materials slide out from the discharging hole 43d under the action of gravity, so that discharging is realized. In the device, the size of each cavity is the same, so that quantitative discharging can be realized. In the present apparatus, the conveying speed is adjusted to 60 to 80kg/min in order to ensure the discharge rate.

As shown in fig. 19, at least 4 spiral plates 44d are provided, and adjacent spiral plates 44d are arranged at equal angles, wherein in the present embodiment, 4 spiral plates 44d are provided, the angle between adjacent spiral plates 44d is 90 °, the discharge port 43d is provided at the lower end of the barrel 45d, and the angle between the discharge port 43d and the horizontal plane is set to 60 °.

In this device, a large amount of rice husk are stored in storage silo 1, when adding rice husk material in needs to the mud, the rice husk material falls on screw plate 44d, pivot 46d drives screw plate 44d and rotates, forward screw plate and reverse screw plate's work pushing direction are opposite, when the rice husk material falls into blanking fill 3d from storage silo 1, the rice husk material can pile up at blanking fill 3 d's middle part, consequently when screw conveyer 4d starts, forward screw plate and reverse screw plate respectively with the rice husk material propelling movement to blanking fill 3 d's both sides and accomplish the work of ejection of compact simultaneously, consequently the rice husk material can be even cover whole blanking fill 3 d's exit area when blanking, make mud can fully mix with the rice husk material, can make aerobic fermentation abundant, improve the mixed degree of rice husk material and mud.

Example 4

As shown in fig. 20, a fourth embodiment of the present invention is similar to embodiment 3, except that in this embodiment, 3 spiral plates 44d are provided, the included angle between each adjacent spiral plate 44d is 120 °, and the discharge port 43d and the feed port 42d are mounted on the same line, and a chamber is formed between the adjacent spiral plates 44d, in this embodiment, when the spiral plates 44d rotate to any angle, the same chamber is not communicated with the feed port 42d and the discharge port 43d at the same time, so that the feed port 42d and the discharge port 43d are not directly communicated, and thus the function of a valve is not achieved.

Example 5

As shown in fig. 21, a fifth embodiment of the present invention is similar to embodiment 1 except that in this embodiment, the sludge fermentation apparatus further includes a vibrating sludge feeding device e provided on the ground below the fermentation tank 4a, the vibrating sludge feeding device e including a sludge feeding tray 1e, a vibrator 2e, a swing frame 3e and a fixed support 4e; the mud tray 1e is rotationally connected with a swinging frame 3e, and the swinging frame 3e controls the mud tray 1e to incline or be parallel to the horizontal plane; the vibrator 2e controls the mud pan to vibrate.

After the sludge is discharged by the sludge discharge mechanism, the sludge discharge disc 1e of the vibrating sludge discharge device e can catch the sludge, and the swing frame 3e controls the sludge discharge disc 1e to incline so as to pour the sludge; meanwhile, the vibrator 2e controls the sludge tray 1e to vibrate, so that the bonding force of the sludge on the sludge tray 1e can be effectively reduced, and the sludge tray is easier to pour.

It is to be understood that the above examples of the present invention are provided by way of illustration only and not by way of limitation of the embodiments of the present invention. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the invention are desired to be protected by the following claims.

Claims (8)

1. The utility model provides a mud fermenting installation, its characterized in that includes the fermenting case, is used for carrying out aeration system and being used for letting out the mud of mud in the fermenting case put mud mechanism, wherein:

the fermentation box is suspended, an opening is formed in the bottom of the fermentation box, and a plurality of bearing plates which are obliquely arranged relative to the vertical direction of the fermentation box are arranged in the fermentation box;

the aeration system comprises an air supply system and a pipeline system, wherein the pipeline system comprises an aeration main pipe and an aeration pipe which are communicated with each other, the aeration pipe is arranged at the bottom of the bearing plate, and a plurality of exhaust ports are arranged on the aeration pipe at intervals;

the mud discharging mechanism is arranged at the bottom opening of the fermentation tank and comprises a plurality of rotating shafts which are uniformly arranged in parallel with a horizontal plane and are mutually parallel, and a rotating shaft driving mechanism, wherein comb-shaped baffles are arranged on the rotating shafts, and the rotating shaft driving mechanism controls the rotating shafts to rotate so as to drive the comb-shaped baffles to be closed or opened;

the rotating shaft driving mechanism comprises a rotating shaft synchronous mechanism which is connected with all the rotating shafts to enable the rotating shafts to synchronously rotate, a rotating mechanism which controls the rotating shafts to rotate and a vibrating mechanism which controls the rotating shafts to vibrate along the circumferential direction; the comb tooth mounting baffle comprises a plurality of long mud baffle rods which are arranged on the rotating shafts and are parallel to the rotating shafts in the same radial direction, the long mud baffle rods are uniformly arranged along the axial direction of the rotating shafts to form a comb tooth-shaped structure, and the length of each long mud baffle rod is smaller than the interval length between the adjacent rotating shafts; still be equipped with a plurality of short mud-guard bars in the pivot, the parallel long mud-guard bars of short mud-guard bars locate the epaxial opposite side of pivot, be equipped with a short mud-guard bar on the reverse extension line of symmetry axis between two arbitrary adjacent long mud-guard bars, short mud-guard bar length is less than long mud-guard bar, short mud-guard bar diameter is less than the interval length between the adjacent long mud-guard bars, short mud-guard bar forms reverse broach structure, with the crisscross setting of long mud-guard bar of adjacent pivot, when putting mud operation closed, long mud-guard bar and short mud-guard bar cooperation carry out the load, reduce the area of contact in mud and broach structure clearance, in order to reduce the outflow of mud.

2. The sludge fermentation apparatus of claim 1, wherein the bearing plate is provided with at least two layers, each layer of bearing plate being arranged in parallel with respect to a horizontal plane; the bearing plates in each layer are provided with a plurality of bearing plates, and the inclination directions and the inclination angles of the bearing plates in the same layer are consistent; the bearing plates of two adjacent layers have the same inclination angle and opposite inclination directions.

3. The sludge fermentation device according to claim 2, wherein the bottom of each bearing plate is provided with at least one aeration pipe, and each air outlet is connected with an aeration head; the aeration dry pipe is arranged on the lateral wall of the outer side of the fermentation tank.

4. The sludge fermentation apparatus of claim 1, wherein the air supply system comprises an air compressor, an air storage tank and a heat exchanger, the air compressor is connected with the air storage tank through a pipeline, the air storage tank is connected with an air inlet end of the heat exchanger through a pipeline, and an air outlet end of the heat exchanger is connected with the pipeline system.

5. The sludge fermentation apparatus of claim 4 wherein the piping is connected to at least one of the fermentation tanks.

6. The sludge fermentation device according to any one of claims 1 to 5, further comprising a sludge leveling device fixedly arranged above the fermentation tank, wherein the sludge leveling device comprises a linear reciprocating driving device, a guide rail and a frame, the frame is slidably connected with the guide rail, a plurality of scrapers are arranged on the frame, and the linear reciprocating driving device is connected with the frame and drives the frame to perform linear reciprocating motion.

7. The sludge fermentation device of any one of claims 1 to 5, further comprising a rice hull feeding device disposed above the fermentation tank, wherein the rice hull feeding device comprises a storage bin and a blanking hopper which are communicated with each other, and a rotary discharge valve is disposed at an outlet of the blanking hopper.

8. The sludge fermentation device of any one of claims 1 to 5, further comprising a vibrating sludge travelling device arranged on the ground below the fermentation tank, wherein the vibrating sludge travelling device comprises a sludge travelling disc, a vibrator, a swinging frame and a fixed support; the mud moving disc is rotationally connected with the swing frame, and the swing frame controls the mud moving disc to incline or be parallel to the horizontal plane; the vibrator controls the mud tray to vibrate.