Continuous vacuum suction filter

Abstract

The utility model discloses a continuous vacuum suction filter which comprises a suction filter shell, a shell inner cavity is formed in the suction filter shell, a spiral conveying shaft is transversely or obliquely arranged in the shell inner cavity, and a driving mechanism used for driving the spiral conveying shaft to rotate so as to convey materials is arranged on the suction filter shell. A filter cage matched with the spiral conveying shaft is arranged in an inner cavity of the shell, the spiral conveying shaft is arranged in the filter cage, a liquid recycling hopper is arranged on the lower side of the filter cage, a plurality of negative pressure openings used for being communicated with a negative pressure source are formed in the liquid recycling hopper, and a liquid outlet is further formed in the liquid recycling hopper. A material input port and a material outlet which are matched with the spiral conveying shaft are respectively formed in the positions, close to the input end and the output end of the spiral conveying shaft, of the suction filter shell. According to the utility model, solid-liquid separation can be continuously carried out on materials, the working efficiency is improved, and separated solid substances are more convenient to take out.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of filter, particularly is the technical field of continuous vacuum filter. BACKGROUND

[0002] There are various viscous solid-liquid mixtures, sediment liquid, dissolved liquid and the like in the current industrial application raw materials, which need to be solid-liquid separated or the liquid thereof is crystallized. The vacuum extraction is a common fast method, which overcomes the defects of slow separation speed and small separation amount under normal pressure, and different solids and liquids can be separated according to different raw materials. The vacuum filter is a device for realizing solid-liquid separation by using vacuum negative pressure as the driving force.

[0003] For example, the Chinese utility model patent with publication number CN205495067U proposes a vacuum filter, which comprises a filter tank and a filter bag. A support hole plate is arranged in the filter tank, the bottom of the filter bag is laid on the support hole plate, and the bag opening is turned out from the tank edge of the filter tank. A liquid discharge pipe connected with a vacuum pumping device is arranged at the bottom of the filter tank. A pressure detection device for detecting the pressure in the inner cavity of the filter tank below the support hole plate is further arranged on the filter tank. The output end of the pressure detection device is connected with a main control device. An alarm is connected with the output end of the main control device. An alarm threshold is preset in the main control device. When the output value of the pressure detection device exceeds the alarm threshold, the main control device starts the alarm. However, the prior art including the above patent has the problem that it is inconvenient for continuous production and cannot continuously perform vacuum filtration. When in use, the raw materials need to be manually replaced in batches to realize solid-liquid separation of a large amount of materials, and the separated solid substances are inconvenient to take out. SUMMARY

[0004] The utility model aims at solving the problem in the prior art and proposes a continuous vacuum filter, which can continuously separate solid and liquid materials, improve work efficiency, and make it more convenient to take out the separated solid substances.

[0005] To achieve the above-mentioned purpose, the utility model provides a kind of continuous vacuum filter, including filter shell, the shell cavity is equipped in the filter shell, the shell cavity is equipped with helical conveyor shaft transversely or obliquely, the drive mechanism for driving the helical conveyor shaft rotation to transport material is equipped on the filter shell, the filter cage that is cooperated with the helical conveyor shaft is equipped in the shell cavity, the helical conveyor shaft is equipped in the filter cage, the liquid recovery hopper is equipped in the lower side of the filter cage, a plurality of negative pressure ports for being communicated with negative pressure source are equipped on the liquid recovery hopper, the liquid recovery hopper is further equipped with liquid outlet, the input end, output end position of the helical conveyor shaft is respectively equipped with material input port and discharge port for being cooperated with the helical conveyor shaft on the filter shell.

[0006] As preferred, the screw conveying shaft comprises a first screw shaft and a second screw shaft arranged in parallel, and the first screw shaft and the second screw shaft operate synchronously and keep the same direction conveying.

[0007] As preferred, the first screw shaft and the second screw shaft each comprise a main shaft body and a spiral blade coiled on the surface of the main shaft body, and the diameter of the main shaft body gradually increases from the material input port to the discharge port end.

[0008] As preferred, the first screw shaft and the second screw shaft each comprise a main shaft body and a spiral blade coiled on the surface of the main shaft body, and the diameter of the main shaft body keeps unchanged from the material input port to the discharge port end.

[0009] As preferred, the filter housing is further provided with a plurality of spray heads arranged towards the filter cage.

[0010] As preferred, the filter cage is divided into a plurality of vacuum filtration stages with gradually increased filter mesh size from the material input port to the discharge port end.

[0011] As preferred, the lower side of each vacuum filtration stage is provided with an independent liquid recovery bucket corresponding thereto.

[0012] As preferred, the material input port is arranged on the upper side of the filter cage, and the discharge port is arranged on the lower side of the filter cage.

[0013] As preferred, the discharge port is provided with a transparent observation window.

[0014] The continuous vacuum filter of the utility model has the advantages that: the continuous vacuum filter is provided with a screw conveying shaft, a filter cage for solid-liquid separation, and a negative pressure port, and the screw conveying shaft, the filter cage and the negative pressure port are matched to continuously perform vacuum filtration on the material, realize solid-liquid separation, improve work efficiency, and the separated solid material is directly conveyed to the discharge port by the screw conveying shaft and discharged, so that the solid material is more convenient to take out.

[0015] The features and advantages of the utility model will be described in detail in combination with the drawings and embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is the front view structural schematic diagram of the embodiment one of the continuous vacuum filter of the utility model.

[0017] Figure 2 is the top view structural schematic diagram of the embodiment one of the continuous vacuum filter of the utility model.

[0018] Figure 3 is the side view structural schematic diagram of the continuous vacuum filter of the utility model.

[0019] Figure 4 is an embodiment two of the continuous vacuum filtration machine according to the present application.

[0020] In the formula, R1 is a C1-C6 alkyl group, R2 is a C1-C6 alkyl group, and R3 is a C1-C6 alkyl group.

[0021] 1 - filter shell; 2 - screw conveying shaft; 3 - driving mechanism; 4 - filter cage; 5 - liquid recovery hopper; 6 - spray head; 11 - material input port; 12 - discharge port; 21 - first screw shaft; 22 - second screw shaft; 121 - transparent observation window; 211 - main shaft body; 212 - spiral blade. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical scheme and advantages of the present application more clear and explicit, the following will further describe the present application through the drawings and examples. However, it should be understood that the specific examples described herein are only used to explain the present application, and are not used to limit the scope of the present application. In addition, in the following description, the description of the known structures and technologies is omitted to avoid unnecessary confusion of the concept of the present application.

[0023] In the description of the present application, it should be noted that when an element is referred to as "fixed to" or "provided on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0024] In the description of the present application, it should be noted that the terms "center", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly used when the product of the present application is used, and are only for the convenience of describing the present application and simplifying the description, and are not intended to indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third", and the like are only used for differentiation, and cannot be understood as indicating or implying relative importance. Therefore, the features limited by "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the present application, "a plurality of" means two or more, unless otherwise explicitly and specifically limited. "Several" means one or more, unless otherwise explicitly and specifically limited.

[0025] In the description of the utility model, still need explaining, unless another explicit provision and limitation, term "arrangement", "installation", "link", "connection" should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected, can be mechanical connection, also can be electrical connection, can be direct connection, also can through the intermediate medium indirectly connect, can be two elements inside the intercommunication. For ordinary skilled person in the art, can understand the concrete meaning of the above-mentioned term in the utility model according to specific circumstances. Example one

[0026] Referring to Figure 1 , Figure 2 and Figure 3 , the utility model discloses a continuous vacuum filtration machine, including filter press shell 1, the filter press shell 1 is equipped with the shell inner chamber, the horizontal arrangement of screw conveyor shaft 2 is equipped in the shell inner chamber, the drive mechanism 3 for driving the screw conveyor shaft 2 rotation to convey material is equipped on the filter press shell 1, and the drive mechanism 3 specifically includes motor and speed reducer and is formed, the filter cage 4 that cooperates with the screw conveyor shaft 2 is equipped in the shell inner chamber, and the filter cage 4 is used for solid-liquid separation, the screw conveyor shaft 2 is located in the filter cage 4, the liquid recovery hopper 5 is equipped on the downside of the filter cage 4, two negative pressure ports 51 for communicating with negative pressure source are equipped on the liquid recovery hopper 5, the liquid recovery hopper 5 bottom is also equipped with liquid outlet 52, the input end, the output end position of the screw conveyor shaft 2 is equipped with the material input port 11 and the discharge port 12 for cooperating with the screw conveyor shaft 2 on the filter press shell 1, the material input port 11 is equipped on the upside of the filter cage 4, and the discharge port 12 is equipped on the downside of the filter cage 4. When working, the equipment that needs solid-liquid separation is put into through the material input port 11, and the material is conveyed to the liquid outlet 52 direction through the rotation of the screw conveyor shaft 2, and the material passes through the filter cage 4 in the conveying process, and the negative pressure port 51 is connected to the negative pressure source, so that the liquid recovery hopper 5 is in the negative pressure state, and the liquid in the filter cage 4 is separated out and flows into the liquid recovery hopper 5 under the action of negative pressure, and is discharged through the liquid outlet 52, realizes solid-liquid separation, and the screw conveyor shaft 2 can keep conveying during the solid-liquid separation process, so as to realize uninterrupted solid-liquid separation, improve efficiency, and the solid after separation can be output through the discharge port 12.

[0027] Referring to Figure 2 and Figure 3 , the screw conveyor shaft 2 includes the first helical shaft 21 and the second helical shaft 22 arranged side by side, and the first helical shaft 21 and the second helical shaft 22 operate synchronously and keep conveying in the same direction. Double-shaft conveying is better in conveying efficiency, and the helical blades 212 of the two screw conveyor shafts 2 are arranged alternately, which can cooperate with each other to clean the helical blades 212 for each other.

[0028] Referring toFigure 2 The first spiral shaft 21 and the second spiral shaft 22 each comprise a main shaft body 211 and spiral blades 212 coiled on the surface of the main shaft body 211, and the diameter of the main shaft body 211 is kept constant from the material input port 11 to the discharge port 12. Embodiment two

[0029] Referring to Figure 4 On the basis of embodiment one, the difference between the present embodiment and embodiment one is that the diameter of the main shaft body 211 gradually increases from the material input port 11 to the discharge port 12. In the present embodiment, the main shaft body 211 with gradually increasing diameter can cooperate with the filter cage 4 to extrude the material during the material conveying process, which is conducive to the extrusion of liquid in the material and improves the solid-liquid separation effect. Embodiment three

[0030] Referring to Figure 1 On the basis of embodiment one or two, a plurality of spray heads 6 are arranged in the filter housing 1 and face the filter cage 4. The spray heads 6 are arranged on the upper side of the filter cage 4, and the filter cage 4 can be cleaned by the spray heads 6 to avoid blockage.

[0031] Preferably, the liquid source of the spray head 6 can be connected to the liquid outlet 52 for recycling the separated liquid, or can be connected to an external liquid source.

[0032] Referring to Figure 1 The filter cage 4 is divided into two filter stages S1 and S2 from the material input port 11 to the discharge port 12, the filter mesh of the filter cage 4 gradually increases from S1 to S2, and the lower sides of S1 and S2 are respectively provided with independent liquid recovery hoppers 5 corresponding thereto. The filtration is gradually refined to improve the filtration quality.

[0033] Referring to Figure 1 A transparent observation window 121 is arranged on the discharge port 12. The discharge state can be observed conveniently, and the discharge condition can be mastered in real time.

[0034] Working process of the continuous vacuum filter

[0035] In the working process of the continuous vacuum filter, the material to be separated into solid and liquid is put into the equipment through the material input port 11, and the material is conveyed towards the liquid outlet 52 by the rotation of the spiral conveying shaft 2. During the conveying process, the material passes through the filter cage 4, the negative pressure port 51 is connected to a negative pressure source, so that the liquid recovery hopper 5 is in a negative pressure state, and the liquid in the filter cage 4 is separated out by the filter cage 4 under the action of negative pressure and flows into the liquid recovery hopper 5, and is discharged through the liquid outlet 52, thereby realizing solid-liquid separation.

[0036] The standard parts used in the application file can be purchased from the market, the specific connection mode of each part adopts the conventional means such as bolt, rivet and welding in the prior art, the internal components of the electric sliding rail sliding seat, cylinder, welding machine, electric telescopic rod and controller adopt the conventional type in the prior art, and the internal structure belongs to the prior art structure, the workers can complete the normal operation according to the existing technical manual, and the circuit connection adopts the conventional connection mode in the prior art, which will not be described in detail here.

[0037] It should be noted that although the above embodiments have been described in this paper, the patent protection scope of the utility model is not limited thereby. Therefore, based on the innovative idea of the utility model, the changes and modifications of the embodiments described in this paper, or the equivalent structure or equivalent process transformation made by using the contents of the utility model specification and drawings, directly or indirectly apply the above technical solutions to other related technical fields, which are all included in the protection scope of the utility model patent.

Claims

1. A continuous vacuum filtration machine comprising a filtration machine housing (1), characterized in that: The filter housing (1) is internally provided with a housing inner cavity, a spiral conveying shaft (2) is horizontally or obliquely arranged in the housing inner cavity, a driving mechanism (3) for driving the spiral conveying shaft (2) to rotate to convey materials is arranged on the filter housing (1), a filter cage (4) cooperating with the spiral conveying shaft (2) is arranged in the housing inner cavity, the spiral conveying shaft (2) is arranged in the filter cage (4), a liquid recovery hopper (5) is arranged on the lower side of the filter cage (4), a plurality of negative pressure ports (51) for communicating with a negative pressure source are arranged on the liquid recovery hopper (5), a liquid outlet (52) is further arranged on the liquid recovery hopper (5), and a material inlet (11) and a discharge port (12) for cooperating with the spiral conveying shaft (2) are respectively arranged on the filter housing (1) near the input end and the output end of the spiral conveying shaft (2).

2. A continuous vacuum filter as claimed in claim 1, characterized in that: The spiral conveying shaft (2) comprises first and second spiral shafts (21) and (22) arranged side by side, and the first and second spiral shafts (21) and (22) operate synchronously and keep the same direction conveying.

3. A continuous vacuum filter as claimed in claim 2, characterized in that: The first and second spiral shafts (21) and (22) each comprise a main shaft body (211) and spiral blades (212) arranged on the surface of the main shaft body (211), and the diameter of the main shaft body (211) gradually increases from the material inlet (11) to the discharge port (12).

4. A continuous vacuum filter as claimed in claim 2, characterized in that: The first and second spiral shafts (21) and (22) each comprise a main shaft body (211) and spiral blades (212) arranged on the surface of the main shaft body (211), and the diameter of the main shaft body (211) remains unchanged from the material inlet (11) to the discharge port (12).

5. A continuous vacuum filter as claimed in claim 1, characterized in that: The filter housing (1) is further provided with a plurality of spray heads (6) arranged towards the filter cage (4).

6. A continuous vacuum filter machine as claimed in claim 1, characterized in that: The filter cage (4) is divided into a plurality of filter stages with gradually increasing filter mesh sizes from the material inlet (11) to the discharge port (12).

7. A continuous vacuum filter as claimed in claim 6, characterized in that: Each of the filter stages is provided with a corresponding independent liquid recovery hopper (5) on the lower side.

8. A continuous vacuum filter machine as claimed in claim 1, characterized in that: The material inlet (11) is arranged on the upper side of the filter cage (4), and the discharge port (12) is arranged on the lower side of the filter cage (4).

9. A continuous vacuum filter machine as claimed in claim 1, wherein: The discharge port (12) is provided with a transparent observation window (121).

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