RU2045340C1 - Disintegrator - Google Patents

Disintegrator Download PDF

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Publication number
RU2045340C1
RU2045340C1 SU5063767A RU2045340C1 RU 2045340 C1 RU2045340 C1 RU 2045340C1 SU 5063767 A SU5063767 A SU 5063767A RU 2045340 C1 RU2045340 C1 RU 2045340C1
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RU
Russia
Prior art keywords
plates
rotor
stator
housing
fingers
Prior art date
Application number
Other languages
Russian (ru)
Inventor
Федор Евгеньевич Максимов
Александр Викторович Браславский
Original Assignee
Федор Евгеньевич Максимов
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Федор Евгеньевич Максимов filed Critical Федор Евгеньевич Максимов
Priority to SU5063767 priority Critical patent/RU2045340C1/en
Application granted granted Critical
Publication of RU2045340C1 publication Critical patent/RU2045340C1/en

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Abstract

FIELD: disintegrators applicable in construction, chemical food and other industries for grinding loose and small sized materials. SUBSTANCE: disintegrator has cylindrical body 1 in which rotor is vertically arranged. Rotor has concentrically installed pins 3 with plates 4 and 5 located between pins 3. Plates 4 and 5 are arranged at angle of 163-173 deg. to vector of peripheral velocity. Plates overlap each other by 1/4 of their size. Gap between rotor and stator pins may reduce from center to periphery in ratio of 2.5:1.5:1. Peripheral concentric row of stator plates may be made through the entire body width and has port. EFFECT: higher efficiency. 3 cl, 5 dwg

Description

 The invention relates to the grinding of bulk and small-sized materials and can be used in the construction, chemical food and other industries.
Known disembarker containing a cylindrical body with a vertical rotor located in it with concentric rows of fingers, between which are placed the rows of fingers of the stator, loading and unloading pipes [1]
However, this device is characterized by low efficiency of the grinding process and the heterogeneity of the particle size distribution of the finished product.
The closest to the proposed technical solution is dismembrator comprising a cylindrical housing with disposed therein a vertical rotor concentrically installed with rows of fingers between which the rows of grinding elements of the stator, which are made in the form of plates and are mounted at an angle of 140-160 to the circumferential direction of the vector rotor speed, loading and unloading nozzles.
 The gap between the stator plates increases from the center to the periphery.
 This design has several disadvantages.
 The first is that the stator plates are not installed at an angle that is optimal with respect to the rotor peripheral velocity vector, which leads to a reduction in the degree of grinding. The second disadvantage is that an increase in the gap between the stator plates from the center to the periphery of the dismembrator leads to unjustified energy consumption due to increased friction in the first grinding stage when grinding bulk materials, as well as to the breakthrough of large particles from the last stage to the discharge pipe, which leads to uneven particle size distribution of grinding products.
 The invention allows to increase the degree of grinding and to achieve a more uniform particle size distribution of the crushed materials.
This is achieved by the fact that in the disembarker, which includes a cylindrical body, a rotor vertically located in it with concentric rows of fingers, between which are placed obtuse angles of the rotor speed vector of the stator plate, the gap between which increases from the center to the periphery, loading and unloading pipes, the stator plate mounted at an angle of 163-173 to the vector of the circumferential speed of the rotor, wherein the plates are mounted with the overlap to 1/4 the length of the plates; the gap between the stator plates and the gap between the fingers of the rotor and the stator plates decreases from the center to the periphery in the ratio of 2.5 to 1.5 1.
 The peripheral concentric row of stator plates is made over the entire width of the housing and has a window whose length is 1/6 of the circumference of the inner diameter of the housing, and the width is determined by the distance from the end face of the fingers of the rotor to the rear wall of the housing, while the outlet in the housing has identical dimensions. The window can be installed in the range from strict alignment with the outlet in the housing to completely exit the zone of the outlet in the housing.
Installation stator plates at an angle of 163-173 to the vector of the peripheral speed increases the degree of grinding to an average of 25-30% Decrease or increase the setting angle plates, respectively, the minimum and maximum values leads to lower degree of crushing due to non-optimum angle of impingement of particles on the stator plate .
 The installation of stator plates with an overlap of up to 1/4 of the length of the plates ensures that large particles do not slip into the finished product. A decrease in the amount of overlap leads to an increase in the breakthrough of large particles into the finished product, and an increase worsens the mode of operation of the dismembrator and reduces its productivity.
 The gap between the stator plates, decreasing from the center to the periphery in the ratio of 2.5 to 1.5 1 also helps to prevent the breakthrough of large particles into the finished product and provides a more uniform particle size distribution of the grinding products.
 The gap between the fingers of the rotor and the stator plates, decreasing from the center to the periphery of the dismembrator in a ratio of 2.5 1.5 1 implements the principle of "do not grind anything superfluous", increases the degree of grinding and provides a more uniform particle size distribution of grinding products. Changing this ratio in both cases up or down reduces the efficiency of the grinding process.
 The implementation of the peripheral plates of the stator over the entire width of the casing with a window whose length is 1/6 of the circumference of the inner diameter of the casing, and the width is equal to the distance from the end of the fingers of the rotor to the rear wall of the casing and the identical size of the outlet in the casing allows you to adjust the performance of the dismembrator and grinding fineness.
 An increase in the size of the window and the outlet in the casing leads to an increase in the productivity of the disassembler, but reduces the degree of grinding and affects the particle size distribution of the grinding products. Reducing their size leads to a sharp decrease in productivity and can lead (with a significant decrease) to jamming of the dismembrator.
 The installation of the window of the peripheral plates of the stator and the outlet in the housing in the range from their strict alignment to the full exit from the alignment zone allows you to adjust the fineness of the grinding in the descrambler and grind materials of different humidity.
 In FIG. 1 shows a dismembrator, section; in FIG. 2, section AA in FIG. 1; in FIG. 3 mutual arrangement of fingers and plates; in FIG. 4 view along arrow B on the discharge pipe; in FIG. 5 is a section BB of FIG. 2.
The dismembrator includes a cylindrical housing 1 in which the rotor 2 is vertically arranged with concentric rows of fingers 3 between which the plates 4 are located, the peripheral row of the plates 5 of the stator 6. The plates 4, 5 are installed at an angle of 163-173 about the rotor peripheral velocity vector. In this case, the plates 4, 5 are installed with an overlap of up to 1/4 of the length of the plates 5, 4. The plates 4, 5 are installed so that in the direction from the center to the periphery of the dismembrator, the gap between the δ plates 4, 5 decreases in the ratio 2.5 1 , 5 1. In the same ratio, the gap h between the fingers 3 of the rotor 2 and the plates 4, 5 of the stator 6 is reduced. The peripheral row of plates 5 of the stator 6 is made over the entire inner width of the housing 1 and has a window 8 with a length equal to 1/6 the circumference of the inner diameter of the housing 1 and a width "in" equal to the distance from the end of the peripheral about the concentric row of fingers 3 of rotor 2 to the rear wall of the housing 1. Housing 1 includes an outlet 9 for unloading material from the disassembler, having identical dimensions with the dimensions of the window 8 in the peripheral row of plates 5 of the stator 6. On the stator 6 there is a loading pipe 7, and on case 1 discharge pipe 10.
 The dismembrator works as follows.
 The crushed material through the pipe 7 together with the air enters the grinding working zone and under the impact of the first concentric row of the fingers 3 of the rotor 2 is destroyed. Under the action of gravity and centrifugal forces, the material being crushed enters the gap space h between the fingers 3 of the rotor 2 and the plates 4 of the stator 6 and is subjected to further grinding due to impacts on the plates 4 and fingers 3.
 Having reached a certain size, the particles of the material to be crushed through the gaps δ between the plates 4 enter the next grinding stage under the action of gravity and the radial component of the air flow circulating in the dismounter, where a similar process takes place.
 In this case, the material, passing from the center to the periphery and the outlet 9 in the housing 1, is subjected to intense loading by reducing the gaps between the fingers 3 of the rotor 2 and the plates 4, 5 of the stator 6, since smaller particles arrive at each subsequent stage.
 The reduction of the gaps δ between the plates 4, 5 and their installation with the overlap eliminates during the grinding process, the breakthrough of large not crushed particles in the finished product.
 Once on the last peripheral stage and finally crushed, the finished product is unloaded through the window 8 and the outlet 9, and is discharged from the mill through the loading pipe 10.
 Regulation of the air flow through the dismembrator and the installation of the window 8 in various positions relative to the outlet 9 in the housing make it possible to change the productivity and particle size distribution of the grinding products and allow grinding materials prone to aggregation.

Claims (3)

1. DIESMEMBRATOR, comprising a cylindrical body, a rotor vertically arranged in it with concentric rows of fingers, between which are placed obtuse angles of the rotor speed vector of the stator plate, the gap between which increases from the center to the periphery, loading and unloading nozzles, characterized the fact that the angle of the plates to the direction of the vector of peripheral speed is 163 173 o C, while the plates overlap each other by 1/4 of their size.
 2. The dismembrator according to claim 1, characterized in that the gap between the stator plates and the gap between the fingers of the rotor and stator are reduced from the center to the periphery in a ratio of 2.5 to 1.5 1.
 3. The dismembrator according to claim 1, characterized in that the peripheral concentric row of stator plates is made over the entire width of the housing and forms a window whose length is 1/6 of the inner diameter of the housing, and the width is determined by the distance from the end face of the rotor fingers to the rear wall of the housing, this outlet in the housing has identical dimensions, and the plates are made with the possibility of adjusting their windows relative to the outlet in the housing until it is completely overlapped or fully combined.
SU5063767 1992-09-30 1992-09-30 Disintegrator RU2045340C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU5063767 RU2045340C1 (en) 1992-09-30 1992-09-30 Disintegrator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU5063767 RU2045340C1 (en) 1992-09-30 1992-09-30 Disintegrator

Publications (1)

Publication Number Publication Date
RU2045340C1 true RU2045340C1 (en) 1995-10-10

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
SU5063767 RU2045340C1 (en) 1992-09-30 1992-09-30 Disintegrator

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RU (1) RU2045340C1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013182044A1 (en) * 2012-06-07 2013-12-12 Wang Hongfu Water cooling type impact grinder
RU171086U1 (en) * 2016-10-14 2017-05-19 Федеральное государственное бюджетное научное учреждение Всероссийский научно-исследовательский институт механизации и информатизации агрохимического обеспечения сельского хозяйства (ФГБНУ ВНИМС) Dismembrator
RU2687165C2 (en) * 2017-04-12 2019-05-07 федеральное государственное бюджетное образовательное учреждение высшего образования "Белгородский государственный технологический университет им. В.Г. Шухова" Disintegrator

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
1. Сиденко П.М. Измельчение в химической промышленности, М.: Химия, 1977, с.153. *
2. Авторское свидетельство СССР N 1126321, кл. B 02C 13/22, 1984. *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013182044A1 (en) * 2012-06-07 2013-12-12 Wang Hongfu Water cooling type impact grinder
RU171086U1 (en) * 2016-10-14 2017-05-19 Федеральное государственное бюджетное научное учреждение Всероссийский научно-исследовательский институт механизации и информатизации агрохимического обеспечения сельского хозяйства (ФГБНУ ВНИМС) Dismembrator
RU2687165C2 (en) * 2017-04-12 2019-05-07 федеральное государственное бюджетное образовательное учреждение высшего образования "Белгородский государственный технологический университет им. В.Г. Шухова" Disintegrator

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