Non-clogging feed pump for dry anaerobic fermentation tank

Abstract

The application provides a dry anaerobic fermentation tank feeding pump which is not easy to block, and belongs to the technical field of feeding pumps. The feeding pump comprises a base, a first mounting frame, a second mounting frame and a third mounting frame fixedly connected to the top of the base, and a driving mechanism, a piston seat and a feeding seat fixedly connected to the first mounting frame, the second mounting frame and the third mounting frame through screws respectively. When there are impurities on the surfaces of the push rods of the third sealing plug and the fourth sealing plug, which result in incomplete resetting of the third sealing plug and the fourth sealing plug, the inner push plate can automatically process the impurities on the push rod part of the third sealing plug and the fourth sealing plug. Since the impurity removing part is in a sawtooth shape, the profile of the impurity removing part cooperates with the inward extrusion force of the inner push plate, so that the impurities on the push rod can be removed more completely. The impurity removing part can be wrapped around the push rod according to the profile of the push rod, so that the impurity removing part wraps around the push rod to remove the impurities, thereby further improving the removal effect of the inner push plate on the impurities on the surface of the push rod.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of feed pumps, in particular to a dry anaerobic fermentation tank feed pump not prone to blockage. BACKGROUND

[0002] Biomass natural gas (also known as biomethane or RNG) is biogas produced by anaerobic fermentation of organic raw materials such as agricultural waste, livestock manure, and forestry residues. After purification through upgrading processes such as desulfurization and decarbonization, the main component is methane, which can be directly injected into urban gas pipelines or used in industrial and transportation sectors. Organic raw materials are primarily processed through anaerobic fermentation tanks. Dry materials processed in anaerobic fermentation tanks have a solid content of between 20% and 40%, such as livestock manure, straw, and kitchen waste.

[0003] Currently, dry feeding is often used in biomass natural gas processes, which relies on piston pump systems to transport materials to anaerobic fermentation tanks. However, due to the high viscosity and low flow characteristics of dry materials, bridging, arching, and blockage often occur in the feeding pipe and valves, especially at the valve push rod position of the piston pump system. Dry materials tend to hang on the valve push rod, causing incomplete valve reset and affecting device sealing, which further affects feeding efficiency. Therefore, to prevent blockage during the feeding process of the piston pump system and improve its feeding efficiency, the present application provides a dry anaerobic fermentation tank feed pump not prone to blockage. SUMMARY

[0004] The technical problem to be solved by the present application is to provide a dry anaerobic fermentation tank feed pump not prone to blockage. By setting the feeding mechanism, when impurities on the push rod surfaces of the third and fourth sealing plugs cause incomplete reset, the inner push plate can automatically process the impurities on the push rod parts of the third and fourth sealing plugs. Since the impurity removal part has a sawtooth profile, the profile of the impurity removal part cooperates with the inward extrusion force of the inner push plate to more thoroughly remove impurities from the push rod. In addition, the impurity removal part can undergo a wrapping deformation according to the profile of the push rod, allowing the impurity removal part to wrap around the push rod to remove impurities, thereby further improving the impurity removal effect of the inner push plate on the surface of the push rod. The above settings can solve the problems of blockage during the feeding process of the piston pump system and low feeding efficiency of the piston pump system.

[0005] To solve the above technical problems, the present application provides the following technical solutions:

[0006] The utility model provides a kind of not easy to block dry anaerobic fermentation tank with feeding pump, including base, the top of the base is fixedly connected with first mounting bracket, second mounting bracket and third mounting bracket, first mounting bracket, second mounting bracket and third mounting bracket are respectively fixedly connected with driving mechanism, piston seat and feeding seat on screw, two feeding barrels are fixedly connected between piston seat and feeding seat, reinforcing rib is inserted in the four corners of piston seat and feeding seat, the top of piston seat is fixedly connected with overhaul box, first piston and second piston are slidably connected in piston seat, the end of first piston and second piston is fixedly connected with front piston, limiting sleeve is fixedly connected on the outer wall of feeding seat by screw, the top of feeding seat is symmetrically provided with feed inlet corresponding with the position of feeding barrel, discharge port is arranged at the top center position of feeding seat, and the discharge port and the feed inlet are connected, the driving mechanism is used to drive first piston and second piston to slide in and out in piston seat and feeding barrel, feeding mechanism, the feeding mechanism is used to pump material from the feed inlet into the discharge port, and the feeding mechanism is connected with the feeding seat.

[0007] Optionally, the driving mechanism includes a motor fixedly connected to the top of the first mounting bracket, the output end of the motor is fixedly connected with a first pulley, the pulley is tensioned with a belt, the driving mechanism further includes a second pulley installed on the top of the first mounting bracket, the first pulley and the second pulley are connected by the belt, and the two sides of the second pulley are both installed with a bearing seat.

[0008] Optionally, the two ends of the second pulley are both fixedly connected with a mounting plate, the outer side wall of the mounting plate is fixedly connected with a turntable by screw, the outer wall of the turntable is fixedly connected with a first drive rod, the end of the first drive rod away from the turntable is rotatably connected with a second drive rod, and the first piston and the second piston are both connected with the first drive rod through the second drive rod.

[0009] Optionally, the feeding mechanism includes two first hydraulic cylinders fixedly connected to the side of the feeding seat away from the feeding barrel, the output end of the two first hydraulic cylinders is respectively fixedly connected with a first sealing plug and a second sealing plug, and the positions of the first sealing plug and the second sealing plug correspond to the positions of the first piston and the second piston respectively.

[0010] Optionally, the size of the outer circumference of the first sealing plug and the second sealing plug is adapted to the size of the inner circumference of the feeding barrel.

[0011] Optionally, the feeding mechanism further includes two second hydraulic cylinders fixedly connected to the bottom of the feeding seat. The output ends of the two second hydraulic cylinders are respectively fixedly connected to a third sealing plug and a fourth sealing plug. The positions of the third sealing plug and the fourth sealing plug correspond to the positions of the first piston and the second piston, respectively.

[0012] Optionally, the outer circumference dimensions of the third and fourth sealing plugs are adapted to the inner circumference dimensions of the feed inlet, and a position sensor is installed inside both the third and fourth sealing plugs.

[0013] Optionally, the front piston consists of two cylinders, and an electric push rod is fixedly connected to one cylinder of the front piston near the first piston and the second piston by screws. The output end of the electric push rod is fixedly connected to an inner push seat, which abuts against the inner wall of the other cylinder of the front piston. Two inner push plates are symmetrically installed on the outer wall of the inner push seat.

[0014] Optionally, the inner push plate has an arc-shaped profile that curves outward toward the inner push seat. A guide portion is fixedly connected to one end of the inner push plate away from the inner push seat. The guide portion is inclined toward the center position of the inner push seat. A cleansing portion is fixedly connected to one side of each of the two inner push plates. The cleansing portion has a sawtooth profile.

[0015] Optionally, the inner push plate, the guide portion, and the impurity removal portion are combined to form a triangular profile. A bent portion is fixedly connected at the connection position between the inner push plate and the inner push seat. The bent portion bends the connection position between the inner push plate and the inner push seat. A triangular profile clearance groove is provided on the inner push plate. An adapter cylinder that matches the profile of the inner push plate is fixedly connected to the inner wall of the front piston.

[0016] Compared with the prior art, the present invention has at least the following beneficial effects:

[0017] In the above scheme, by setting a drive mechanism, not only can the first piston and the second piston be driven to slide and extend within the piston seat simultaneously, but the sliding directions of the first piston and the second piston are always in opposite directions, and they extend and extend alternately. The first mounting bracket and the second piston are driven by only a single motor. This setting makes the production cost of this device lower. The drive mechanism, together with the feeding mechanism, enables this device to transport materials without interruption. The materials enter the two feeding cylinders sequentially from the two inlets at the top of the feeding seat, and exit uniformly from the outlet under the pumping action of the first piston and the second piston. This setting makes the material conveying efficiency of the feed pump provided in this application higher.

[0018] When impurities exist on the push rod surfaces of the third sealing plug and the fourth sealing plug, causing incomplete resetting of the third sealing plug and the fourth sealing plug, the inner push plate can automatically process the impurities on the push rod part of the third sealing plug and the fourth sealing plug. Since the impurity removing part is in a sawtooth shape, the profile of the impurity removing part cooperates with the inward extrusion force of the inner push plate to remove the impurities on the push rod more thoroughly. Further, the relief groove on the inner push plate makes the impurity removing part and the inner push plate in a hollow state. This setting cooperates with the extrusion force of the inner push plate on the push rod, so that the impurity removing part can be wrapped around the push rod to remove impurities during the contact between the impurity removing part and the push rod, thereby further improving the removal effect of the inner push plate on the impurities on the surface of the push rod. BRIEF DESCRIPTION OF DRAWINGS

[0019] The accompanying drawings, which are incorporated herein and constitute part of the specification, illustrate embodiments of the application and, together with the description, further serve to explain the principles of the application and to enable a person skilled in the relevant art to implement and use the application.

[0020] Figure 1 Stereoscopic structure diagram of the three-dimensional structure of the feed pump for the dry anaerobic fermentation tank;

[0021] Figure 2 Stereoscopic structure diagram of the three-dimensional structure of the drive mechanism cooperation amplification;

[0022] Figure 3 Stereoscopic structure diagram of the three-dimensional structure of the motor, belt and turntable cooperation amplification;

[0023] Figure 4 Stereoscopic structure diagram of the three-dimensional structure of the motor, first pulley, belt and second pulley cooperation amplification;

[0024] Figure 5 Stereoscopic structure diagram of the three-dimensional structure of the drive mechanism, piston seat and feeding cylinder cooperation;

[0025] Figure 6 Stereoscopic structure diagram of the three-dimensional structure of the piston seat, feeding cylinder and feeding seat cooperation amplification;

[0026] Figure 7 Stereoscopic structure diagram of the three-dimensional structure of the drive mechanism and feeding mechanism cooperation from the first perspective;

[0027] Figure 8 Stereoscopic structure diagram of the three-dimensional structure of the drive mechanism and feeding mechanism cooperation from the second perspective;

[0028] Figure 9 Stereoscopic structure diagram of the three-dimensional structure of the first piston, front piston and third sealing plug cooperation;

[0029] Figure 10 Stereoscopic structure diagram of the three-dimensional structure of the front piston and inner push plate cooperation from the first perspective;

[0030] Figure 11 Figure 2 is a schematic view of a front piston and an inner push plate mating profile from a second perspective;

[0031] Reference signs:

[0032] 1, base; 2, first mounting frame; 3, motor; 4, first pulley; 5, belt; 6, second pulley; 7, bearing seat; 8, mounting plate; 9, rotating disc; 10, first driving rod; 11, second driving rod; 12, first piston; 13, second piston; 14, front piston; 15, second mounting frame; 16, piston seat; 17, maintenance box; 18, feeding cylinder; 19, third mounting frame; 20, limiting sleeve; 21, feeding seat; 22, reinforcing rib; 23, discharge port; 24, feeding port; 25, first hydraulic cylinder; 26, first sealing plug; 27, second sealing plug; 28, second hydraulic cylinder; 29, third sealing plug; 30, fourth sealing plug; 31, electric push rod; 32, inner push seat; 33, inner push plate; 34, guide part; 35, impurity removing part; 36, bending part; 37, avoiding groove; 38, adapting cylinder.

[0033] As shown in the drawings, in order to clearly show the structure of the embodiments of the present application, specific structures and devices are marked in the drawings, but this is only for the need of illustration, and is not intended to limit the present application to the specific structures, devices and environments, and those skilled in the art can adjust or modify these devices and environments according to specific needs. DETAILED DESCRIPTION

[0034] A kind of not easy to block dry anaerobic fermentation tank feed pump provided by the present application is described in detail below in combination with drawings and specific embodiments. It is explained here that in order to make the embodiments more detailed, the following embodiments are the best, preferred embodiments, and other alternative ways can also be used by those skilled in the art to implement some known technologies; And the part of the drawings is only for more specific description of the embodiments, and is not intended to specifically limit the present application.

[0035] It should be noted that in the specification, "one embodiment", "embodiment", "exemplary embodiment", "some embodiments" and the like indicate that the described embodiments can include specific features, structures or characteristics, but not necessarily every embodiment includes the specific features, structures or characteristics. In addition, when a specific feature, structure or characteristic is described in combination with an embodiment, it should be within the knowledge of those skilled in the related art to realize this feature, structure or characteristic in combination with other embodiments (whether or not explicitly described).

[0036] In general, the terminology can be understood at least in part from a context of a use of the language within a description. For example, the term“one or more” as used herein, depending at least in part upon a context of a usage, can be used to describe any feature, structure, or characteristic in a singular sense or can be used to describe combinations of features, structures or characteristics in a plural sense. Additionally, the term“based on” can be understood as not necessarily intended to convey an exclusive set of factors, but rather can, at least

[0037] It will be understood that the terms“on,”“over,” and“above,” in the present invention should be interpreted in the broadest context possible, such that“on” not only means“directly on” something but also includes the meaning of being“on” something with intervening features or layers therebetween, and“over” or“above” not only means the meaning of being“over” or“above” something but also can include the meaning of being“over” or“above” something with no intervening features or layers therebetween.

[0038] In addition, spatially relative terms, such as“beneath,”“below,”“lower,”“above,”“upper” and the like, can be used herein for ease of description to describe one element or feature’s relationship to another element(s) or feature(s) as illustrated in the figures. The spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientations depicted in the figures. The devices can be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

[0039] As Figures 1 to 5As shown, the embodiment of the application provides a dry anaerobic fermentation tank feeding pump which is not easy to block, comprising a base 1, the top of the base 1 is fixedly connected with a first mounting frame 2, a second mounting frame 15 and a third mounting frame 19, a driving mechanism, a piston seat 16 and a feeding seat 21 are fixedly connected on the first mounting frame 2, the second mounting frame 15 and the third mounting frame 19 respectively through screws, a first piston 12 and a second piston 13 are slidably connected in the piston seat 16, the driving mechanism is used for driving the first piston 12 and the second piston 13 to slide in and out of the piston seat 16 and the feeding cylinder 18, the driving mechanism comprises a motor 3 fixedly connected at the top of the first mounting frame 2, the output end of the motor 3 is fixedly connected with a first pulley 4, the first pulley 4 is tensioned with a belt 5, the driving mechanism further comprises a second pulley 6 mounted at the top of the first mounting frame 2, the first pulley 4 and the second pulley 6 are connected through the belt 5, bearing seats 7 are mounted on the two sides of the second pulley 6, the second pulley 6 and the first mounting frame 2 are fixed through the bearing seats 7, mounting plates 8 are fixedly connected at the two ends of the second pulley 6, a turntable 9 is fixedly connected on the outer side wall of the mounting plate 8 through screws, a first driving rod 10 is fixedly connected on the outer wall of the turntable 9, a second driving rod 11 is rotatably connected at the end of the first driving rod 10 away from the turntable 9, the first piston 12 and the second piston 13 are connected with the first driving rod 10 through the second driving rod 11.

[0040] In the above structure, the motor 3 drives the first pulley 4 to rotate after starting, because the first pulley 4 and the second pulley 6 are tensioned and fixed together through the belt 5, so the second pulley 6 will rotate synchronously in the process of the first pulley 4 rotating, because the two ends of the second pulley 6 are fixed with the turntable 9 through the mounting plates 8, so the two turntables 9 will rotate synchronously under the driving of the second pulley 6 after the motor 3 drives the first pulley 4 to rotate.

[0041] Further, the first driving rod 10 is rotatably connected on the outer wall of the two turntables 9, the first driving rod 10 and the second driving rod 11 are rotatably connected together, the first piston 12 and the second piston 13 are inserted and limited in the piston seat 16, therefore, when the two turntables 9 rotate, the first piston 12 and the second piston 13 will be driven to slide in and out of the piston seat 16 under the cooperation of the first driving rod 10 and the second driving rod 11, it is worth mentioning that the positions of the two first driving rods 10 mounted on the turntable 9 in the initial state (i.e. before rotating) are respectively located at the front end and the rear end of the turntable 9 (as shown in the figure), such a setting makes the first piston 12 and the second piston 13 alternate in and out of the piston seat 16 when the two turntables 9 rotate synchronously, that is, the first piston 12 slides towards one direction while the second piston 13 slides towards the opposite direction. Figure 2

[0042] ​In summary, by setting the driving mechanism, the first piston 12 and the second piston 13 can be simultaneously driven to slide in and out of the piston seat 16, and the sliding directions of the first piston 12 and the second piston 13 are always opposite, and the two are alternately in and out, in addition, the first piston 12 and the second piston 13 are only driven to operate by a single motor 3, and such a setting makes the device have a lower production cost.

[0043] In this embodiment, as shown in Figure 1 and Figure 6 The piston seat 16 and the feeding seat 21 are fixedly connected with two feeding barrels 18, the four corners of the piston seat 16 and the feeding seat 21 are inserted with reinforcing ribs 22, the top of the piston seat 16 is fixedly connected with an inspection box 17, the outer wall of the feeding seat 21 is fixedly connected with a limiting sleeve 20 through screws, the top of the feeding seat 21 is symmetrically provided with a material inlet 24 corresponding to the positions of the feeding barrels 18, and the top of the feeding seat 21 is provided with a material outlet 23 at the center position, and the material outlet 23 and the material inlet 24 are connected in communication.

[0044] The piston seat 16 is mainly used for limiting the sliding of the first piston 12 and the second piston 13, the piston seat 16 and the feeding seat 21 are connected together through the feeding barrels 18 and the reinforcing ribs 22, the reinforcing ribs 22 can improve the structural strength between the piston seat 16 and the feeding seat 21, and ensure the stability of the feeding barrel 18, the inspection box 17 at the top of the piston seat 16 is opened to facilitate the maintenance personnel to maintain the first piston 12 and the second piston 13, the material to be conveyed is conveyed to the position of the material inlet 24 through the pipeline, then enters the feeding seat 21 through the material inlet 24, and finally is pumped to the position of the material outlet 23 through the first piston 12 and the second piston 13, under the pumping action of the first piston 12 and the second piston 13, the material can be sprayed at high speed from the material outlet 23, and then is conveyed to the fermentation tank along the pipeline, so that the effect of feeding the fermentation tank is achieved.

[0045] Optionally, in this technical solution, the material outlet 23 and the material inlet 24 are connected with the pipeline conveying the material, and the pipeline is not shown in the drawings, which is disclosed as prior art.

[0046] As an embodiment in this embodiment, as shown in Figures 6 to 8As shown, the feeding mechanism is used for pumping the material from the inlet 24 to the outlet 23, the feeding mechanism is connected with the feeding seat 21, the feeding mechanism comprises two first hydraulic cylinders 25 fixedly connected on the side of the feeding seat 21 away from the feeding cylinder 18, the output ends of the two first hydraulic cylinders 25 are fixedly connected with a first sealing plug 26 and a second sealing plug 27 respectively, the positions of the first sealing plug 26 and the second sealing plug 27 correspond to the positions of the first piston 12 and the second piston 13 respectively, the sizes of the outer circumferences of the first sealing plug 26 and the second sealing plug 27 are adapted to the size of the inner circumference of the feeding cylinder 18, the feeding mechanism further comprises two second hydraulic cylinders 28 fixedly connected on the bottom of the feeding seat 21, the output ends of the two second hydraulic cylinders 28 are fixedly connected with a third sealing plug 29 and a fourth sealing plug 30 respectively, the positions of the third sealing plug 29 and the fourth sealing plug 30 correspond to the positions of the first piston 12 and the second piston 13 respectively, the sizes of the outer circumferences of the third sealing plug 29 and the fourth sealing plug 30 are adapted to the size of the inner circumference of the inlet 24, and the third sealing plug 29 and the fourth sealing plug 30 are both installed with a position sensor.

[0047] By setting the feeding mechanism, the device can continuously feed the material, specifically, in the initial state (such as Figure 7 As shown), the first sealing plug 26 abuts against the end of the feeding cylinder 18 on which the front piston 14 is installed, under the sealing action of the first sealing plug 26, the feeding cylinder 18 and the feeding seat 21 form two independent sealed chambers, at this time, the third sealing plug 29 is driven by the second hydraulic cylinder 28 to move downward, the inlet 24 above the third sealing plug 29 is opened after the third sealing plug 29 moves, the material enters the feeding cylinder 18, then the motor 3 is started to drive the first piston 12 to move away from the feeding seat 21, a negative pressure is generated in the feeding seat 21 and the feeding cylinder 18 during the movement of the first piston 12, so that the material is continuously sucked into the feeding cylinder 18; when the first piston 12 moves to the end of the feeding cylinder 18, the third sealing plug 29 is driven by the second hydraulic cylinder 28 to reset to reseal the inlet 24 at the top of the third sealing plug 29, at the same time, the first sealing plug 26 is driven by the first hydraulic cylinder 25 to move and open the channel between the feeding cylinder 18 and the feeding seat 21, at this time, the feeding cylinder 18 and the feeding seat 21 form a whole interconnected chamber (such as Figure 8 As shown), when the first piston 12 moves again towards the feeding seat 21, the material will be sprayed at high speed to the position of the outlet 23 under the pushing action of the first piston 12, so as to realize the pumping effect of the material.

[0048] Further, the feeding seat 21 is respectively provided with a first sealing plug 26, a third sealing plug 29, a second sealing plug 27 and a fourth sealing plug 30, wherein the cooperation operation between the first sealing plug 26 and the third sealing plug 29 is consistent with the cooperation operation between the second sealing plug 27 and the fourth sealing plug 30, and further cooperating with the alternating extension and contraction movement between the first piston 12 and the second piston 13, so that the device can continuously convey the material, the material enters into the two feeding cylinders 18 from the two feeding ports 24 at the top of the feeding seat 21 in turn, and is uniformly discharged from the discharge port 23 under the pumping action of the first piston 12 and the second piston 13, so that the feeding pump provided by the application has higher conveying efficiency.

[0049] As an embodiment in the present embodiment, as shown in Figures 7 to 11 The end of the first piston 12 and the second piston 13 is fixedly connected with a front piston 14, the front piston 14 is composed of two cylinder bodies, and the front piston 14 is fixedly connected with an electric push rod 31 in one of the cylinder bodies close to the first piston 12 and the second piston 13 by screws, the output end of the electric push rod 31 is fixedly connected with an inner push seat 32, the inner push seat 32 abuts against the inner wall of the other cylinder body of the front piston 14, two inner push plates 33 are symmetrically installed on the outer wall of the inner push seat 32, the inner push plate 33 is a circular arc profile curved towards the outer side of the inner push seat 32, a guide portion 34 is fixedly connected to the end of the inner push plate 33 away from the inner push seat 32, the guide portion 34 is inclined towards the center position of the inner push seat 32, a dedusting portion 35 is fixedly connected to the opposite side of each of the two inner push plates 33, the dedusting portion 35 is a sawtooth profile, the inner push plate 33, the guide portion 34 and the dedusting portion 35 form a triangular profile, a bending portion 36 is fixedly connected to the connection position of the inner push plate 33 and the inner push seat 32, the bending portion 36 bends the connection position of the inner push plate 33 and the inner push seat 32, an avoiding slot 37 with a triangular profile is formed in the inner push plate 33, and an adaptive cylinder 38 matched with the profile of the inner push plate 33 is fixedly connected to the inner wall of the front piston 14.

[0050] Through the arrangement of the above structure, the inner push rod 31 is started to push the inner push rod 32 and the inner push plate 33 out of the front piston 14 synchronously, the inner push plate 33 can process the impurities on the push rod part of the third sealing plug 29 and the fourth sealing plug 30, specifically, the spacing between the two inner push plates 33 is smaller than the size of the outer circumference of the push rod on the third sealing plug 29 and the fourth sealing plug 30, under the driving action of the electric push rod 31, the inner push plate 33 will move towards the push rod, when the inner push plate 33 contacts the push rod, under the guiding action of the guide part 34, the push rod will extrude the inner push plate 33, under the extrusion action of the push rod, the inner push plate 33 will be deformed at the position of the bending part 36 and expand outward, the inner push plate 33 will extrude the push rod inward during the outward expansion process, when the inner push plate 33 continuously moves towards the push rod, the impurity removing part 35 contacts the push rod, since the impurity removing part 35 is a sawtooth profile, therefore, the profile of the impurity removing part 35 cooperates with the extrusion force of the inner push plate 33 to remove the impurities on the push rod, when the electric push rod 31 drives the inner push plate 33 to move on the push rod repeatedly, the removal effect of the inner push plate 33 on the impurities on the push rod can be further ensured.

[0051] Further, the avoiding groove 37 arranged on the inner push plate 33 makes the impurity removing part 35 and the inner push plate 33 in a hollow state, such an arrangement cooperates with the extrusion force of the inner push plate 33 on the push rod, so that during the contact process of the impurity removing part 35 and the push rod, the impurity removing part 35 can be deformed in a wrapping manner according to the profile of the push rod, so that the impurity removing part 35 wraps the push rod to remove the impurities, thereby further improving the removal effect of the inner push plate 33 on the impurities on the surface of the push rod; the bending part 36 arranged between the inner push plate 33 and the inner push rod 32 is bent at the connecting position, so that the inner push plate 33 can be deformed under the extrusion action of the push rod, and the two inner push plates 33 can smoothly pass through the push rod and apply the inward extrusion force; since the profile of the adaptive barrel 38 is matched with that of the inner push plate 33, when the inner push plate 33 is accommodated in the second piston 13, the material cannot enter the cavity of the adaptive barrel 38.

[0052] The working principle of the technical scheme provided by the application is as follows:

[0053] In the initial state, the first sealing plug 26 is in contact with the end of the feeding barrel 18 on which the front piston 14 is installed, and under the sealing action of the first sealing plug 26, the feeding barrel 18 and the feeding seat 21 form two independent closed chambers, at this time, the second hydraulic cylinder 28 is driven to move the third sealing plug 29 downward, after the third sealing plug 29 moves, the material inlet 24 above the third sealing plug 29 is opened, and the material enters the feeding barrel 18, then the motor 3 is started, after the motor 3 is started, the first pulley 4 is driven to rotate, because the first pulley 4 and the second pulley 6 are fixed together through the belt 5, therefore, the second pulley 6 rotates synchronously in the process that the first pulley 4 rotates, because the two ends of the second pulley 6 are fixed with the rotating disc 9 through the mounting plate 8, therefore, after the motor 3 drives the first pulley 4 to rotate, the two rotating discs 9 are driven to rotate synchronously under the driving of the second pulley 6, when the two rotating discs 9 rotate, the first piston 12 and the second piston 13 are driven to slide in the piston seat 16 under the cooperation of the first driving rod 10 and the second driving rod 11, in the process that the first piston 12 moves, the negative pressure is generated in the feeding seat 21 and the feeding barrel 18, so that the material is continuously sucked into the feeding barrel 18; when the first piston 12 moves to the end of the feeding barrel 18, the second hydraulic cylinder 28 drives the third sealing plug 29 to reset and reseal the material inlet 24 at the top of the third sealing plug 29, at the same time, the first hydraulic cylinder 25 drives the first sealing plug 26 to move and open the channel between the feeding barrel 18 and the feeding seat 21, at this time, the feeding barrel 18 and the feeding seat 21 form an entire communicating chamber, when the first piston 12 moves again towards the feeding seat 21, under the pushing action of the first piston 12, the material is high-speed injected to the position of the material outlet 23, so that the pumping effect of the material is realized.

[0054] In the initial state, the two first driving rods 10 installed on the rotating disc 9 are respectively located at the front end and the rear end of the rotating disc 9, so that when the two rotating discs 9 rotate synchronously, the first piston 12 and the second piston 13 alternately slide in the piston seat 16, that is, when the first piston 12 slides towards one direction, the second piston 13 just slides towards the opposite direction, the rotating disc 9 drives the first piston 12 to move away from the feeding seat 21, the cooperation between the first sealing plug 26 and the third sealing plug 29 in the technical solution is consistent with the cooperation between the second sealing plug 27 and the fourth sealing plug 30, and the alternating sliding movement between the first piston 12 and the second piston 13, so that the device can continuously transport the material, the material enters the two feeding barrels 18 from the two material inlets 24 at the top of the feeding seat 21 in turn, and is uniformly discharged from the material outlet 23 under the pumping action of the first piston 12 and the second piston 13, so that the feeding pump provided by the application has higher material transportation efficiency.

[0055] When the third sealing plug 29 and the fourth sealing plug 30 are not reset completely due to impurities on the push rod surfaces of the third sealing plug 29 and the fourth sealing plug 30, the position sensor feeds back the relative position length information between the third sealing plug 29 and the fourth sealing plug 30 and the second hydraulic cylinder 28, and the information fed back by the position sensor does not match the standard value when the third sealing plug 29 and the fourth sealing plug 30 are not reset completely, so the electric push rod 31 is started to run, and the inner push rod 32 and the inner push plate 33 are synchronously pushed out from the front piston 14 under the driving of the electric push rod 31, and the inner push plate 33 moves towards the push rod under the driving of the electric push rod 31, and the push rod is extruded by the inner push plate 33 under the guiding of the guide part 34, and the inner push plate 33 is deformed at the position of the bending part 36 and expands outward under the extrusion of the push rod, and the inner push plate 33 expands outward and extrudes the push rod inward, and the impurities removing part 35 contacts the push rod when the inner push plate 33 continuously moves towards the push rod, and the impurities removing part 35 is sawtooth-shaped, so the impurities removing part 35 can remove the impurities on the push rod under the extrusion of the inner push plate 33, and the removal effect of the impurities on the push rod by the inner push plate 33 can be further ensured when the inner push plate 33 repeatedly moves on the push rod under the driving of the electric push rod 31.

[0056] The present application encompasses any alternatives, modifications, equivalent methods and solutions made on the essence and scope of the present application. In order to make the public have a thorough understanding of the present application, specific details are described in the following preferred embodiments of the present application, and the present application can also be fully understood without the description of these details to those skilled in the art. In addition, in order to avoid unnecessary confusion to the essence of the present application, well-known methods, processes, procedures, elements and circuits are not described in detail.

[0057] The above is only the preferred embodiment of the present application, and it should be pointed out that those skilled in the art can make some improvements and refinements without departing from the principle of the present application, and these improvements and refinements should also be regarded as the protection scope of the present application.

Claims

1. A non-clogging feed pump for a dry anaerobic fermentation tank, comprising a base, characterized in that, The top of the base is fixedly connected with a first mounting frame, a second mounting frame and a third mounting frame, a driving mechanism, a piston seat and a feeding seat are fixedly connected on the first mounting frame, the second mounting frame and the third mounting frame through screws respectively, two feeding barrels are fixedly connected between the piston seat and the feeding seat, and reinforcing ribs are inserted into four corners of the piston seat and the feeding seat. The top of the piston seat is fixedly connected with an inspection box, the piston seat is slidably connected with a first piston and a second piston, the end of the first piston and the second piston is fixedly connected with a front piston, a limiting sleeve is fixedly connected on the outer wall of the feeding seat through screws, the top of the feeding seat is symmetrically provided with a feeding inlet corresponding to the position of the feeding barrel, and a discharging outlet is formed in the center of the top of the feeding seat. The driving mechanism is used for driving the first piston and the second piston to slide in and out of the piston seat and the feeding barrel. A feeding mechanism is used for pumping materials from the feeding inlet to the discharging outlet, and the feeding mechanism is connected with the feeding seat. The front piston is composed of two barrels, and a electric push rod is fixedly connected in one of the barrels of the front piston close to the first piston and the second piston through screws, the output end of the electric push rod is fixedly connected with an inner push seat, the inner push seat abuts against the inner wall of the other barrel of the front piston, and two inner push plates are symmetrically installed on the outer wall of the inner push seat. The inner push plate is a circular arc profile curved towards the outer side of the inner push seat, the end of the inner push plate away from the inner push seat is fixedly connected with a guide portion, the guide portion is inclined towards the center position of the inner push seat, and the opposite sides of the two inner push plates are fixedly connected with impurity removal portions which are sawtooth profiles. The inner push plate, the guide portion and the impurity removal portion form a triangular profile, a bending portion is fixedly connected at the connection position of the inner push plate and the inner push seat, the bending portion is bent at the connection position of the inner push plate and the inner push seat, an avoiding slot of a triangular profile is formed in the inner push plate, and an adaptive barrel matched with the profile of the inner push plate is fixedly connected on the inner wall of the front piston.

2. The non-clogging feed pump for a dry anaerobic fermentation tank according to claim 1, characterized by The driving mechanism comprises a motor fixedly connected at the top of the first mounting frame, and the output end of the motor is fixedly connected with a first pulley. The driving mechanism further comprises a second pulley installed at the top of the first mounting frame, the first pulley and the second pulley are connected through the belt, and the two sides of the second pulley are both installed with a bearing seat.

3. The non-clogging feed pump for a dry anaerobic fermentation tank according to claim 2, characterized by The two ends of the second pulley are both fixedly connected with mounting plates, the outer side wall of the mounting plate is fixedly connected with a turntable through screws, the outer wall of the turntable is fixedly connected with a first driving rod, the end of the first driving rod away from the turntable is rotatably connected with a second driving rod, and the first piston and the second piston are connected with the first driving rod through the second driving rod.

4. The non-clogging feed pump for a dry anaerobic fermentation tank according to claim 1, characterized by The feeding mechanism comprises two first hydraulic cylinders fixedly connected to the feeding seat on the side away from the feeding cylinder, and the output ends of the two first hydraulic cylinders are fixedly connected with a first sealing plug and a second sealing plug respectively, and the positions of the first sealing plug and the second sealing plug correspond to the positions of the first piston and the second piston respectively.

5. The non-clogging feed pump for a dry anaerobic fermentation tank according to claim 4, characterized by The sizes of the outer circumferences of the first sealing plug and the second sealing plug are adapted to the size of the inner circumference of the feeding cylinder.

6. The non-clogging feed pump for a dry anaerobic fermentation tank according to claim 1, characterized by The feeding mechanism further comprises two second hydraulic cylinders fixedly connected to the bottom of the feeding seat, and the output ends of the two second hydraulic cylinders are fixedly connected with a third sealing plug and a fourth sealing plug respectively, and the positions of the third sealing plug and the fourth sealing plug correspond to the positions of the first piston and the second piston respectively.

7. The non-clogging feed pump for a dry anaerobic fermentation tank according to claim 6, characterized by The sizes of the outer circumferences of the third sealing plug and the fourth sealing plug are adapted to the size of the inner circumference of the feeding inlet, and position sensors are installed in the third sealing plug and the fourth sealing plug.

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