Heating device for filtering section in sedimentation filtering centrifugal machine

Abstract

The utility model discloses a heating device of a filtering section in a sedimentation filtering centrifugal machine, which comprises a machine base and an outer rotary drum transmission shaft arranged on the machine base, an inner transmission shaft is arranged in the outer rotary drum transmission shaft, a sedimentation rotary drum is arranged on the outer rotary drum transmission shaft, and the sedimentation rotary drum comprises a sedimentation straight cylinder section and a sedimentation straight cylinder section, the other end of the settling straight barrel section is connected with a settling conical barrel section; the filtering section is internally provided with a filtering spiral which covers the settling conical barrel section and a filtering rotary drum which covers the filtering spiral, and a filtering net is arranged between the filtering spiral and the filtering rotary drum, so that a filtering chamber is formed between the filtering spiral and the filtering net; a filtering drum shaft is arranged on a filtering drum end cover of the filtering drum, a hot air inlet is formed in the filtering drum shaft through a mechanical seal, and hot air channels connected with the hot air inlet and the filtering chamber are arranged on the filtering drum shaft and the filtering drum end cover. The heating device disclosed by the utility model is particularly suitable for being additionally arranged in the sedimentation filtering centrifugal machine.

Description

Technical Field

[0001] The utility model relates to a sedimentation filtering centrifuge, in particular to a heating device for a filtering section in the sedimentation filtering centrifuge. Background Art

[0002] At present, the traditional sedimentation filtration centrifuge is not equipped with a device to heat the material entering the filtration section after sedimentation, resulting in a high moisture content of the finished product. It also needs to be placed on special drying equipment to remove excess moisture to meet the standards, thereby increasing production costs. Utility Model Content

[0003] A technical problem to be solved by the utility model is to provide a heating device for a filtering section in a sedimentation filtering centrifuge which can reduce the water content.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: a heating device for the filtering section in a sedimentation filtering centrifuge, comprising: a machine base, and an outer drum transmission shaft movably arranged on the machine base, the outer drum transmission shaft is a hollow structure, in which an inner transmission shaft is movably arranged, a sedimentation drum is arranged on the outer drum transmission shaft, and the sedimentation drum comprises: a sedimentation straight cylinder section connected to the outer drum transmission shaft through a sedimentation drum end cover at one end, and a sedimentation cone cylinder section with a diameter changing from large to small is connected to the other end of the sedimentation straight cylinder section; a filter section is provided in the filtering section to cover the sedimentation cone cylinder section therein A filter spiral and a filter drum covering the filter spiral therein, a filter screen is arranged between the filter spiral and the filter drum, so as to form a filter chamber between the filter spiral and the filter screen; the filter spiral is connected to the inner transmission shaft, and the filter drum is connected to the sedimentation drum; a filter drum shaft is arranged on the filter drum end cover of the filter drum, the filter drum shaft is movably arranged on the machine base, a mechanical seal is also arranged on the filter drum shaft, a hot air inlet opening outward is arranged in the mechanical seal, and a hot air channel connecting the hot air inlet and the filter chamber is arranged on the filter drum shaft and the filter drum end cover.

[0005] As a preferred embodiment, in the heating device of the filter section in the sedimentation filter centrifuge, the specific structure of the hot air channel includes: a first channel axially arranged in the filter drum shaft, a third channel obliquely opened in the filter drum end cover, and a second channel opened in the filter drum end cover and connecting the first channel and the third channel, the inlet of the first channel is connected to the hot air inlet, and the outlet of the third channel is connected to the filter chamber.

[0006] As a preferred solution, in the heating device of the filtration section in the sedimentation filtration centrifuge, a sedimentation spiral is provided in the sedimentation drum, and the filtration spiral is connected to the inner transmission shaft through the sedimentation spiral.

[0007] As a preferred embodiment, in the heating device of the filtration section in the sedimentation filtration centrifuge, the filter drum end cover includes: an inner cover body, and an outer cover body arranged outside the inner cover body, the outer cover body is connected to the filter drum, and the inner cover body is connected to the filter drum shaft.

[0008] As a preferred solution, in the heating device of the filtration section in the sedimentation filtration centrifuge, the sedimentation drum end cover and the outer drum drive shaft are an integrated structure to form an outer drum flange shaft.

[0009] The beneficial effects of the utility model are as follows: the utility model reduces the moisture content of the finished product by introducing hot air into the filter chamber to heat the material entering the filter section after sedimentation, so that the moisture content of the finished product meets the standard, thereby eliminating the need for special heating equipment to heat it and reducing production costs. In addition, the utility model greatly facilitates the opening of the hot air channel by setting the filter drum end cover as a split structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic cross-sectional structure diagram of the sedimentation filtering centrifuge of the utility model.

[0011] Figure 2 yes Figure 1 Schematic diagram of the enlarged structure of part A.

[0012] Figure 3 It is a schematic diagram of the three-dimensional structure of the filter spiral.

[0013] Figures 1 to 3 The reference numerals in the drawings are: 1, base, 2, differential, 3, inner transmission shaft, 5, sedimentation drum, 50, drum end cover, 501, outer drum transmission shaft, 51, sedimentation straight cylinder section, 52, sedimentation conical cylinder section, 6, sedimentation spiral, 7, filter spiral, 8, filter drum, 80, outer cover body, 81, filter drum shaft, 811, first channel, 82, inner cover body, 821, second channel, 822, third channel, 84, filter screen, 85, filter chamber, 9, mechanical seal, 91, hot air inlet. DETAILED DESCRIPTION

[0014] The specific implementation scheme of the heating device for the filtration section in the sedimentation filtration centrifuge of the utility model is described in detail below in conjunction with the accompanying drawings.

[0015] like Figure 1As shown, the heating device of the filtration section in the sedimentation filtration centrifuge described in the utility model comprises a machine base 1, and an outer drum transmission shaft 501 movably arranged on the machine base 1, wherein the outer drum transmission shaft 501 is a hollow structure, wherein an inner transmission shaft 3 is movably arranged, a sedimentation drum 5 is arranged on the outer drum transmission shaft 501 through a sedimentation drum end cover 50, and a sedimentation spiral 6 is arranged in the sedimentation drum 5, and the sedimentation spiral 6 is connected to the inner transmission shaft 3; the sedimentation drum 5 comprises: The settling drum straight section 51 has one end connected to the settling drum end cover 50, and the settling drum end cover 50 is connected to the outer drum drive shaft 501 (in this embodiment, the settling drum end cover 50 and the outer drum drive shaft 501 are an integrated structure to form an outer drum flange shaft); the other end of the settling drum straight section 51 is connected to a settling cone section 52 with a diameter that changes from large to small; a filtering spiral 7 (see FIG. 7 ) is provided in the filtering section to cover the settling cone section 52 Figure 3 As shown), and a filter drum 8 in which the filter spiral 7 is covered, a filter screen 84 is arranged between the filter spiral 7 and the filter drum 8, so that a filter chamber 85 is formed between the filter spiral 7 and the filter screen 84 (see Figure 2 As shown), the filtering spiral 7 is connected to the settling spiral 6 (it belongs to the conventional technology in this field and will not be described in detail here), and the filtering drum 8 is connected to the settling drum 5 (it belongs to the conventional technology in this field and will not be described in detail here); the corresponding end of the filtering drum 8 ( Figure 1 The right end in FIG. 1 is connected to the filter drum shaft 81 through the filter drum end cover, such as Figure 2 As shown, the specific arrangement is as follows: the filter drum end cover comprises an outer cover body 80 connected to the filter drum 8, and an inner cover body 82 arranged together with the filter drum shaft 81 (in this embodiment, the filter drum shaft 81 and the inner cover body 82 are an integrated structure); the filter drum shaft 81 is movably arranged on the base 1 (which belongs to the conventional technology in this field and will not be described in detail here), and a mechanical seal 9 is also arranged on the filter drum shaft 81, and a hot air inlet 91 opening outward is arranged in the mechanical seal 9, and the filter drum shaft 81 and A hot air channel connecting the hot air inlet 91 and the filter chamber is provided on the inner cover body 82 of the filter drum end cover. The specific structure of the hot air channel includes: a first channel 811 axially arranged in the filter drum shaft 81, a third channel 822 obliquely opened in the inner cover body 82 of the filter drum end cover, and a second channel 821 opened in the inner cover body 82 of the filter drum end cover and connecting the first channel 811 and the third channel 822. The inlet of the first channel 811 is communicated with the hot air inlet 91, and the outlet of the third channel 822 is communicated with the filter chamber 85.

[0016] In actual use, the inner transmission shaft 3 and the outer drum transmission shaft 501 are connected to the differential 2; during operation, hot air is introduced into the filter chamber 85 through the hot air inlet 91, the first channel 811, the second channel 821 and the third channel 822, so as to further reduce the moisture content of the finished product of the material entering the filtration section after sedimentation, so that the moisture content of the finished product meets the standard.

[0017] In summary, the above are only preferred embodiments of the present utility model and are not intended to limit the scope of implementation of the present utility model. All equivalent changes and modifications made to the shape, structure, characteristics and spirit described in the scope of the claims of the present utility model should be included in the protection of the claims of the present utility model.

Claims

1. A heating device for a filtration section in a sedimentation filtration centrifuge, comprising: The machine base is provided with an outer drum transmission shaft movably arranged on the machine base, wherein the outer drum transmission shaft is a hollow structure in which an inner transmission shaft is movably arranged, and a sedimentation drum is arranged on the outer drum transmission shaft, and the sedimentation drum comprises: a sedimentation straight cylinder section whose one end is connected to the outer drum transmission shaft through a sedimentation drum end cover, and a sedimentation cone cylinder section whose diameter changes from large to small is connected to the other end of the sedimentation straight cylinder section; a filtering spiral covering the sedimentation cone cylinder section and a filtering drum covering the filtering spiral are arranged in the filtering section, and a filter spiral covering the filtering spiral is arranged between the filtering spiral and the filter drum; A filter screen is arranged between the filter drums, so that a filter chamber is formed between the filter spiral and the filter screen; the filter spiral is connected to the inner transmission shaft, and the filter drum is connected to the sedimentation drum; it is characterized in that a filter drum shaft is arranged on the filter drum end cover of the filter drum, the filter drum shaft is movably arranged on the machine base, a mechanical seal is also arranged on the filter drum shaft, a hot air inlet opening outward is arranged in the mechanical seal, and a hot air channel connecting the hot air inlet and the filter chamber is arranged on the filter drum shaft and the filter drum end cover.

2. The heating device for the filtration section in a sedimentation filtration centrifuge according to claim 1, characterized in that: The specific structure of the hot air channel includes: a first channel axially arranged in the filter drum shaft, a third channel obliquely opened in the filter drum end cover, and a second channel opened in the filter drum end cover and connecting the first channel and the third channel. The inlet of the first channel is connected to the hot air inlet, and the outlet of the third channel is connected to the filter chamber.

3. The heating device for the filtration section in a sedimentation filtration centrifuge according to claim 1, characterized in that: The sedimentation drum is provided with a sedimentation spiral, and the filtering spiral is connected to the inner transmission shaft through the sedimentation spiral.

4. A heating device for a filtration section in a sedimentation filtration centrifuge according to claim 1, 2 or 3, characterized in that: The filter drum end cover comprises: an inner cover body and an outer cover body arranged outside the inner cover body, the outer cover body is connected to the filter drum, and the inner cover body is connected to the filter drum shaft.

5. A heating device for a filtration section in a sedimentation filtration centrifuge according to claim 1, 2 or 3, characterized in that: The end cover of the sedimentation drum and the outer drum transmission shaft are an integrated structure to form an outer drum flange shaft.

6. The heating device for the filtration section in a sedimentation filtration centrifuge according to claim 4, characterized in that: The end cover of the sedimentation drum and the outer drum transmission shaft are an integrated structure to form an outer drum flange shaft.

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