Stirring separation type centrifugal extractor

Abstract

The utility model discloses a stirring separation type centrifugal extractor which comprises a mixed liquid collecting tank, a mixed liquid heating tank and a medium tank, the mixed liquid heating tank is communicated with the medium tank, a cooling system is arranged outside the joint of the mixed liquid heating tank and the medium tank, and the medium tank is connected with a feeding pipe communicated with the mixed liquid collecting tank. The top and the bottom of the mixed liquid collecting tank are respectively communicated with the mixed liquid heating tank through a volatilization pipe and an outflow pipe; an extraction tank is rotationally arranged in the mixed liquid collecting tank, a stirring blade which is rotationally arranged is further connected in the extraction tank, an inner cover is arranged at the top of the extraction tank, an outer cover is connected to the top of the mixed liquid collecting tank, and a control panel is connected to the outside of the mixed liquid collecting tank. Compared with the prior art, the stirring separation type centrifugal extractor has the advantages that the stirring separation type centrifugal extractor is convenient to operate and use, trichloro ethylene or kerosene can be recycled, and the storage position of mineral powder can be controlled.

Description

Technical Field

[0001] The utility model relates to the technical field of asphalt separation, in particular to a stirring and separation type centrifugal extractor. Background Art

[0002] The centrifugal extractor used in the asphalt content test (centrifugal separation method) for asphalt mixtures in the "Testing Procedures for Asphalt and Asphalt Mixtures for Highway Engineering" (JTG E20-2011) has the following major drawbacks: 1. The operation is complex, resulting in prolonged exposure to trichloroethylene (TCE) for testers, and high TCE volatilization, which is carcinogenic to testers and polluting the environment. 2. TCE cannot be recycled, resulting in high testing costs. 3. The extract contains high levels of mineral powder, making the determination of this content complex and inaccurate. Utility Model Content

[0003] (1) Problems to be solved

[0004] The technical problem to be solved by the utility model is to overcome the above technical defects and provide a stirring and separating centrifugal extractor which is easy to operate and use, recycles trichloroethylene or kerosene, and can control the retention position of mineral powder.

[0005] (2) Technical solution

[0006] In order to solve the above technical problems, the utility model provides a technical solution as follows: a stirring and separating centrifugal extractor, comprising a mixed liquid collection tank, a mixed liquid heating tank, and a medium tank, wherein the mixed liquid heating tank and the medium tank are connected and a cooling system is provided outside the connection, a feeding pipe connected to the mixed liquid collection tank is connected to the medium tank, and a volatilization pipe and an outflow pipe are respectively connected to the mixed liquid heating tank at the top and bottom of the mixed liquid collection tank;

[0007] An extraction tank is rotatably provided in the mixed liquid collection tank, a rotating stirring blade is further connected to the extraction tank, an inner cover is provided on the top of the extraction tank, an outer cover is connected to the top of the mixed liquid collection tank, and a control panel is connected to the outside of the mixed liquid collection tank;

[0008] The bottom end of the mixed liquid collecting tank is connected with a power group, and a driving member is matched between the power group, the stirring blade and the extraction tank.

[0009] As an improvement, a filter screen and a perforated stirring pot are sequentially provided in the extraction tank, the filter screen specification is 0.075mm, and the aperture of the perforated stirring pot is 0.6mm;

[0010] The outer end of the inner cover is provided with a downwardly disposed flange ring, the inner cover is provided with a pipe opening for cooperating with the feeding pipe, and the lower end wall of the extraction tank is provided in a stepped shape;

[0011] The side wall of the extraction tank is also equipped with openings, and a plurality of filter papers are attached to the vertical wall and the horizontal wall of the extraction tank.

[0012] As an improvement, the driving member is a dual-speed shaft, which drives the extraction tank and the stirring blade to rotate respectively, and the power group outputs power to the driving member.

[0013] As an improvement, a check valve is connected to one end of the outflow pipe close to the mixed liquid heating tank.

[0014] As an improvement, the bottom ends of the mixed liquid heating tank and the medium tank are both provided with valve bodies, one side of the mixed liquid heating tank and the medium tank are both connected with liquid level displays, and a pump body is also connected to the feeding pipe in the medium tank.

[0015] (3) Beneficial effects

[0016] The advantages of the present invention compared with the prior art are: the injection, use and recovery of trichloroethylene or kerosene are realized in the present application, the contact time of trichloroethylene or kerosene is shortened, and the body of the inspector is protected; at the same time, the retention position of the mineral powder can be controlled by setting the filter paper, the measurement deviation of the mineral powder can be reduced, the asphalt recovery is convenient, and the recovered asphalt can be used for other indicators, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural diagram of a stirring and separating centrifugal extractor.

[0018] Figure 2 It is a schematic diagram of the connection between the outer cover and the mixed liquid collection tank.

[0019] As shown in the figure: 1. Mixing blade; 2. Inner cover; 3. Outer cover; 4. Mixing pot with holes; 5. Filter; 6. Extraction tank; 7. Mixed liquid collection tank; 8. Power group; 9. Drive component; 10. Mixed liquid heating tank; 11. Liquid level display; 12. Valve body; 13. Cooling system; 14. Pump body; 15. Feed pipe; 16. Volatilization pipe; 17. Outflow pipe; 18. Medium tank; 19. Check valve; 20. Control panel. DETAILED DESCRIPTION

[0020] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings, wherein the same components are represented by the same reference numerals.

[0021] It should be noted that the words "front", "rear", "left", "right", "up" and "down" used in the following description refer to directions in the accompanying drawings, and the words "inside" and "outside" refer to directions toward or away from the geometric center of a specific component, respectively.

[0022] It should be noted that when an element is referred to as being "fixed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this article are for illustrative purposes only.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly associated with those skilled in the art in the technical field to which the present invention pertains. The terminology used herein in the specification of the present invention is for the purpose of describing specific embodiments and is not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0024] In order to make the contents of the present invention more clearly understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention.

[0025] Please refer to the attached Figure 1-2 , a stirring and separation centrifugal extractor, comprising a mixed liquid collecting tank, a mixed liquid heating tank, and a medium tank. The mixed liquid heating tank and the medium tank are connected and a cooling system is provided outside the connection. The medium tank is connected to a feeding pipe connected to the mixed liquid collecting tank, and the top and bottom of the mixed liquid collecting tank are respectively connected to the mixed liquid heating tank with a volatilization tube and an outflow tube; an extraction tank is rotatably arranged in the mixed liquid collecting tank, and an opening is also provided on the side wall of the extraction tank, and a rotatable stirring blade is also connected in the extraction tank, an inner cover is provided on the top of the extraction tank, an outer cover is connected to the top of the mixed liquid collecting tank, and a control panel is connected to the outside of the mixed liquid collecting tank; a power group is connected to the bottom end of the mixed liquid collecting tank, and a driving member is provided between the power group and the stirring blade and the extraction tank.

[0026] When the utility model is implemented,

[0027] To fully dissolve the asphalt in the asphalt mixture, a stirring blade 1 is installed. After the mixture is loaded, clean trichloroethylene or kerosene is pumped in through a pump body 14. The stirring blade 1 stirs at a low speed to fully dissolve the asphalt. The stirring pot 4 with 0.6mm holes separates the coarse and fine aggregates in the mixture, facilitating centrifugal extraction of the mixture. The 0.075mm filter screen 5 filters most of the mineral powder. Filter paper is placed on the vertical and horizontal walls of the stepped extraction tank 6 to facilitate centrifugal extraction of the mixture. The filter paper is used to ensure that the mineral powder is retained as much as possible on the filter paper, limiting the location of the mineral powder.

[0028] In the present application, the inner cover 2 is slightly larger than the extraction tank 6, and the lower edge is protruding, which reduces the upward displacement when the liquid is thrown out and has a certain blocking effect.

[0029] The joint between the mixed liquid collecting tank 7 and the outer cover 3 is provided with a groove, such as Figure 2 As shown, the extracting liquid is prevented from leaking out, and the outflow pipe 17 provided at the bottom facilitates the clean outflow of the extracting liquid and is easy to clean.

[0030] In one embodiment:

[0031] The driving member 9 is designed as a dual-speed shaft stirring blade 1 for low-speed stirring and the extraction tank 6 for high-speed rotation, and they are controlled and used separately by the power group 8.

[0032] In one embodiment, the mixed liquid heating tank 10 is designed to be double-layered: the inner wall is heat-conducting to separate the extracting liquid from the heating tube to avoid affecting the operation of the heating tube; the outer wall is heat-insulating to prevent the inspectors from being scalded.

[0033] The check valve 19 prevents the heated trichloroethylene or kerosene from flowing back into the extraction tank 6. The valve 12 is used to control the release of asphalt and trichloroethylene or kerosene. The cooling device 13 cools the heated and evaporated trichloroethylene or kerosene into liquid to obtain clean trichloroethylene or kerosene. The clean trichloroethylene or kerosene pump 14 is used to extract clean trichloroethylene or kerosene during testing and soak the asphalt mixture for recycling.

[0034] Specifically:

[0035] Place filter paper on the vertical and horizontal walls of the centrifuge tank, weigh the asphalt mixture required by the specification, and place it in the mixing pot. Clean the trichloroethylene or kerosene pump body and start it. Add trichloroethylene or kerosene, soak and stir. The timer can be set to 30 minutes. The equipment automatically controls the extraction tank to rotate at high speed, and the trichloroethylene or kerosene mixture is thrown out. The mixed liquid heating tank starts to operate, evaporating the trichloroethylene or kerosene. The cooling system starts to operate, condensing the trichloroethylene or kerosene into the clean medium tank, and the clean trichloroethylene or kerosene pump starts to operate. Pump trichloroethylene or kerosene into the mixing pot, and the cycle is repeated once. Ensure that all the asphalt is dissolved. After the equipment is completed, remove the mixing pot, filter screen, filter paper, etc., collect all the mineral materials, and release the hot asphalt for standby use.

[0036] The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0037] The standard parts used in the present invention can all be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the existing technology. The machinery, parts and equipment all adopt conventional models in the existing technology, and the circuit connection adopts the conventional connection method in the existing technology. It will not be described in detail here. The content not described in detail in this specification belongs to the existing technology known to professional and technical personnel in this field.

[0038] The above description of the present invention and its embodiments is non-limiting. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if a person skilled in the art is inspired by the above, and does not deviate from the purpose of the present invention, without inventive design, a structure and embodiment similar to the technical solution should fall within the scope of protection of the present invention.

Claims

1. A stirring and separating centrifugal extractor, comprising a mixed liquid collecting tank, a mixed liquid heating tank, and a medium tank, characterized in that: The mixed liquid heating tank is connected to the medium tank and a cooling system is provided outside the connection. The medium tank is connected to a feeding pipe connected to the mixed liquid collecting tank. The top and bottom of the mixed liquid collecting tank are respectively connected to the mixed liquid heating tank with a volatilization pipe and an outflow pipe. An extraction tank is rotatably provided in the mixed liquid collection tank, a rotating stirring blade is further connected to the extraction tank, an inner cover is provided on the top of the extraction tank, an outer cover is connected to the top of the mixed liquid collection tank, and a control panel is connected to the outside of the mixed liquid collection tank; The bottom end of the mixed liquid collecting tank is connected with a power group, and a driving member is matched between the power group, the stirring blade and the extraction tank.

2. The stirring and separating centrifugal extractor according to claim 1, characterized in that: The extraction tank is provided with a filter screen and a perforated stirring pot in sequence, the filter screen specification is 0.075mm, and the aperture of the perforated stirring pot is 0.6mm; The outer end of the inner cover is provided with a downwardly disposed flange ring, the inner cover is provided with a pipe opening for cooperating with the feeding pipe, and the lower end wall of the extraction tank is provided in a stepped shape; The side wall of the extraction tank is also equipped with openings, and a plurality of filter papers are attached to the vertical wall and the horizontal wall of the extraction tank.

3. The stirring and separating centrifugal extractor according to claim 1, characterized in that: The driving member is a dual-speed shaft, which drives the extraction tank and the stirring blade to rotate respectively, and the power group outputs power to the driving member.

4. The stirring and separating centrifugal extractor according to claim 1, characterized in that: A check valve is connected to one end of the outflow pipe close to the mixed liquid heating tank.

5. The stirring and separating centrifugal extractor according to claim 1, characterized in that: The bottom ends of the mixed liquid heating tank and the medium tank are both provided with valve bodies, one side of the mixed liquid heating tank and the medium tank are both connected with a liquid level display, and a pump body is also connected to the feeding pipe in the medium tank.

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