CN105665075A - Hammer mill with high-wear-resistance hammers - Google Patents
Hammer mill with high-wear-resistance hammers Download PDFInfo
- Publication number
- CN105665075A CN105665075A CN201610077862.3A CN201610077862A CN105665075A CN 105665075 A CN105665075 A CN 105665075A CN 201610077862 A CN201610077862 A CN 201610077862A CN 105665075 A CN105665075 A CN 105665075A
- Authority
- CN
- China
- Prior art keywords
- hammer leaf
- hammer
- rotating disk
- sieve plate
- connecting pin
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
- B02C13/13—Disintegrating by mills having rotary beater elements ; Hammer mills with horizontal rotor shaft and combined with sifting devices, e.g. for making powdered fuel
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
- B02C13/26—Details
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
- B02C13/26—Details
- B02C13/28—Shape or construction of beater elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
- B02C13/26—Details
- B02C13/286—Feeding or discharge
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
- B02C13/26—Details
- B02C13/286—Feeding or discharge
- B02C2013/28618—Feeding means
Abstract
The invention discloses a hammer mill with high-wear-resistance hammers. The hammer mill comprises a base, a motor, a coupling, a rotor, a crushing chamber and a charge bin, wherein the motor is connected with the rotor through the coupling; an outlet of the charge bin is connected with an inlet of the crushing chamber through flexible connection; the crushing chamber comprises a shell, a rotor shaft, a sieve plate, a sieve press frame, rotary discs, connection pins, the hammers and a first redirection structure; and the shell comprises a panel, an inner plate and silencing cotton. According to the hammer mill disclosed by the invention, a circulation layer in the crushing chamber is effectively broken, the resistance of material circulation is increased, the sieving rate of materials is increased, and the crushing efficiency is greatly improved; each hammer has the advantages of high performance and long life, is low in production cost and high in profit, and can save lots of steel, reduce energy consumption, promote energy saving and environment protection in industry, and improve core competence for the domestic mill industry; and moreover, according to the hammer mill disclosed by the invention, the flexible connection and the silencing cotton are adopted, thus the working noise of the whole hammer mill is greatly lowered, and noise pollution to a surrounding environment is reduced.
Description
Technical field
The present invention relates to mechanical equipment technical field, specifically a kind of hammer crusher with high-wearing feature hammer leaf.
Background technology
The crushing mechanism of existing hammer crusher is: material enters the pulverizing chamber being made up of rotor, sieve plate, tooth plate, door and body etc. from pulverizer import, want to contact with the hammer leaf end that linear velocity is more than 80m/s at random, in the material of low speed after there is violent shock with hammer leaf at a high speed first, it is pulled into accelerating region by hammer leaf, the end linear velocity close to hammer leaf can be raised in a short period of time at this particle speed, and circle with hammer leaf. And in full speed district, gradually forming material circulation layer, material is also further pulverized simultaneously. Hereafter, owing to material is hit to sieve plate with significantly high speed by hammer leaf, meet the material of granularity requirements by sieve aperture, complete crushing process.
Crushing material is an extremely complex process, the factor affecting crushing effect is a lot, such as, thinking that in stream, individual behavior Jin An under high-speed motion state of various granules is observed or theoretical modeling, in detailed crushing mechanism that material actually occurs or crushing process, a lot of links are also very unclear more. More accurate or quantification shattering is also more rare, but generally acknowledges that the key factor affecting beater disintegrating machine energy consumption and efficiency is material circulation layer. After it is generally acknowledged that circulation layer produces, the fine fraction of internal layer is because with turning phenomenon, it is no longer influenced by very strong hammer force, now mainly being assume responsibility for the task that friction is pulverized by sieve aperture, but the resultant radial force being subject to due to the material in circulation layer is tangentially made a concerted effort much smaller than it, radial velocity is also much smaller than tangential velocity, so that when material particles tangentially slips over sieve aperture, owing to its radial velocity is inadequate, it is impossible to by sieve aperture, circulation
Layer causes can not discharge in time less than the broken material of sieve aperture, causes separation efficiency reduction, material over grind, and ineffective power consumption increases, Feng's stochastic production efficiency reduces and temperature of charge raises. The too high heat-sensitive ingredients can destroyed in material of temperature of charge, even causes incidents of spontaneous combustion when temperature is too high, add heat sink for this specially and further increase the complexity of pulverizer, improve cost.In order to destroy circulation layer, it is used negative pressure air draft apparatus, non-circular sieve plate, changes crushing chamber shape, the method such as rotor center biasing. Although making pulverizer production efficiency increase, but fundamentally do not solve material screening problem yet.
Further, the operationally noise of the pulverizer under prior art is very big, and this not only makes the people of surrounding work and life bring noise worried, and makes the body and mind of the staff being chronically in noisy environment bring adverse influence.
The machinery industry standard JB/T9822.2-2008 regulation of the hammer leaf of pulverizer, hammer leaf adopts 15,20 or the manufacture of 65Mn material, allow to adopt mechanical property to be not less than the other materials manufacture that regulation requires, 15, No. 20 hammer leaves that steel is standby are carried out Carburization Treatment, carburized layer is 0.3-1.2mm, and different according to hammer leaf thickness, carburized layer thickness is also different, after carburizing, nominal hardness is 56-62HRC, and non-cemented zone hardness is less than 28HRC. But according to the hammer leaf that JB/T9822.2-2008 produces, wearability is limited, and the life-span is still relatively low.
The hammer leaf existed in prior art wears no resistance, it is necessary to often changes, causes use cost to be greatly increased; Changing hammer leaf needs shutdown to carry out, not only affects production efficiency, more makes troubles to user and inconvenience, affects the stability of product quality; Hammer leaf in use surface cracks, the series of problems such as phenomenon causing the non-wear out failure of hammer leaf, makes domestic hammer leaf market in the urgent need to a kind of novel high-performance, long-life hammer leaf.
Summary of the invention
It is an object of the invention to provide a kind of simple in construction, the hammer crusher with high-wearing feature hammer leaf easy to use, with the problem solving to propose in above-mentioned background technology.
For achieving the above object, the present invention provides following technical scheme:
A kind of hammer crusher with high-wearing feature hammer leaf, including base, motor, shaft coupling, rotor, pulverizing chamber and feeding warehouse, described motor and pulverizing chamber are installed on base, and motor is connected by shaft coupling and rotor, and the rotor other end stretches in pulverizing chamber, the outlet of described feeding warehouse is connected by the import being flexible coupling with pulverizing chamber, and described pulverizing chamber includes casing, armature spindle, sieve plate, pressure screen frame (unit), rotating disk, connecting pin, hammer leaf and the first changed course structure, described armature spindle, sieve plate, pressure screen frame (unit), rotating disk, connecting pin, hammer leaf and the first changed course structure are installed in casing internal, and described casing includes panel, inner panel and silencing cotton, described silencing cotton is positioned in the cavity between panel and inner panel, described armature spindle is arranged on the center of casing, described rotating disk is provided with multiple, rotating disk is fixedly mounted on armature spindle, each rotating disk is provided with multiple connecting pin bores equidistant with armature spindle, described connecting pin is connected in connecting pin bores, described hammer leaf is arranged on connecting pin, described sieve plate is arranged in the casing outside hammer leaf, sieve plate frame is arranged on the periphery of sieve plate, what sieve plate was internal corresponding with rotating disk is provided with multiple groove, and the bottom of sieve plate is provided with a groove, described first direction-changing is arranged on the material inlet place of pulverizing chamber upper end, and it is wearing layer that the hammer leaf working tips of described hammer leaf is provided with the ceramic particle enhancing composite bed of more than WC50% content, textura epidermoidea in the middle part of hammer leaf is that fine acicular tempered martensite adds Refined Carbide Particle, phosphorus content 0.8-1.0%, and transition zone is organized as fine acicular tempered martensite and adds lath-shaped tempered martensite, and core structure is lath-shaped tempered martensite, phosphorus content 0.2%,Hammer leaf fix end pin-and-hole part be organized as tempered sorbite.
As the further scheme of the present invention: the installation direction of described rotating disk is vertical with the axis of rotor, the installation direction of described connecting pin is parallel with the axis of rotor.
As the further scheme of the present invention: described hammer leaf is at least provided with two kinds of length, and the different hammer leaf of length is for being staggered installation of.
As the further scheme of the present invention: the number of described rotating disk and groove is three, and on each rotating disk, the number of connecting pin and hammer leaf is four.
As the further scheme of the present invention: the distance between described adjacent two rotating disks is 3-5cm.
As the present invention further scheme: the hardness of described hammer leaf working tips is 63-65HRC, in the middle part of hammer leaf, surface hardness is 48-53HRC, and hammer leaf fixes the hardness of end pin-and-hole part lower than 48HRC.
Compared with prior art, the invention has the beneficial effects as follows:
The present invention effectively destroys the circulation layer within pulverizing chamber, add the resistance of material circulation, improve material sieving rate, substantially increase crush efficiency, hammer leaf has high-performance, long-life advantage, not only production cost is low, profit is high, and can be that domestic pulverizer industry saves great deal of steel, reduce energy resource consumption, promote industry energy-saving environmental protection, improve core competitive power, and the present invention adopts and is flexible coupling and noise elimination cotton, greatly reduce the operating noise of complete machine, alleviate the sound pollution to surrounding enviroment.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the structural representation of pulverizing chamber in the present invention.
Fig. 3 is the structural representation of sieve plate upper groove in the present invention.
Fig. 4 is the structural representation of hammer leaf in the present invention.
In figure: 1-base; 2-motor; 3-shaft coupling; 4-rotor; 5-pulverizing chamber; 6-feeding warehouse; 7-is flexible coupling; 8-casing; 9-armature spindle; 10-sieve plate; 11-presses screen frame (unit); 12-rotating disk; 13-connecting pin; 14-hammer leaf; 15-first alters course structure; 17-panel; 18-inner panel; 19-silencing cotton; 20-groove; 21-groove; 22-hammer leaf working tips; In the middle part of 23-hammer leaf; 24-hammer leaf fixing end pin-and-hole part.
Detailed description of the invention
Below in conjunction with detailed description of the invention, the technical scheme of this patent is described in more detail.
Refer to Fig. 1-4, a kind of hammer crusher with high-wearing feature hammer leaf, including base 1, motor 2, shaft coupling 3, rotor 4, pulverizing chamber 5 and feeding warehouse 6, described motor 2 and pulverizing chamber 5 are installed on base 1, motor 2 is connected by shaft coupling 3 and rotor 4, rotor 4 other end stretches in pulverizing chamber 5, the outlet of described feeding warehouse 67 is connected with the import of pulverizing chamber 5 by being flexible coupling, 7 there is buffering and the effect of absorptive amplitude owing to being flexible coupling, when can effectively be worked by pulverizer, produced vibration and noise carry out cushioning and absorbing, thus reducing the purpose of complete machine noise.
Described pulverizing chamber 5 includes casing 8, armature spindle 9, sieve plate 10, pressure screen frame (unit) 11, rotating disk 12, connecting pin 13, hammer leaf 14 and the first changed course structure 15, described armature spindle 9, sieve plate 10, pressure screen frame (unit) 11, rotating disk 12, connecting pin 13, it is internal that hammer leaf 14 and the first changed course structure 15 are installed in casing 8, described casing 8 includes panel 17, inner panel 18 and silencing cotton 19, described silencing cotton 19 is positioned in the cavity between panel 17 and inner panel 18, silencing cotton 19 can effectively reduce the noise that pulverizer operationally produces, described armature spindle 9 is arranged on the center of casing 8, described rotating disk 12 is provided with three, rotating disk 12 is fixedly mounted on armature spindle 9 along the axis direction of armature spindle 9, distance between adjacent two rotating disks 12 is 3-5cm, rotating disk 12 is provided with four connecting pin bores equidistant with armature spindle 9, described connecting pin 13 is connected in connecting pin bores, and the installation direction of connecting pin 13 is parallel with the axis of rotor 4, described hammer leaf 14 is arranged on connecting pin 13, hammer leaf 14 is at least provided with two kinds of length, and the different hammer leaf 14 of length is for being staggered installation of, hammer leaf 14 is different to the distance of armature spindle 9, therefore hammer leaf 14 works on different surface of revolutions, namely hammer leaf 14 is in different bed of material work, constantly destroy the circulation layer of material, thus improve crush efficiency, described sieve plate 10 is arranged in the casing 8 outside hammer leaf 14, sieve plate frame 11 is arranged on the periphery of sieve plate 10, what sieve plate 10 was internal corresponding with rotating disk 12 is provided with three grooves 20, and the bottom of sieve plate 10 is provided with a groove 21, described first direction-changing 15 is arranged on the material inlet place of pulverizing chamber 4 upper end, it is wearing layer that the hammer leaf working tips 22 of described hammer leaf 14 is provided with the ceramic particle enhancing composite bed of more than WC50% content,In the middle part of hammer leaf, the textura epidermoidea of 23 is that fine acicular tempered martensite adds Refined Carbide Particle, phosphorus content 0.8-1.0%, and transition zone is organized as fine acicular tempered martensite and adds lath-shaped tempered martensite, and core structure is lath-shaped tempered martensite, phosphorus content 0.2%; Hammer leaf fix end pin-and-hole part 24 be organized as tempered sorbite; The hardness of described hammer leaf working tips 22 is 63-65HRC, and in the middle part of hammer leaf, 23 surface hardnesses are 48-53HRC, and hammer leaf fixes the hardness of end pin-and-hole part 24 lower than 48HRC.
Described hammer leaf 14 is with Q345B steel for matrix, in the preparation, hammer leaf working tips 22 overlaying method forms the ceramic particle reinforced composite wearing layer of WC content more than 50%, overlaying method is gas flame built-up welding mode, be not less than the wear-resisting gas welding rod of cast tungsten carbide of 30% with WC content, welding gas is oxy-acetylene, flame temperature 1700 DEG C, oxygen pressure is 0.5MPa, and acetylene pressure is 0.05MPa; In the middle part of hammer leaf, 23 first adopt gas carburizing mode to change case carbon, then quenching and temper it are sequentially carried out: in stove, be first warming up to 920 DEG C and be incubated 20min, strong carburizing 165min afterwards, carbon potential keeps 1.1, the 120min of insulation diffusion afterwards, carbon potential keeps 0.9, is cooled to 830 DEG C and keeps 30min, and carbon potential keeps 0.8; Quenching with fast quenching oil after coming out of the stove, the laggard tempering furnace that quenches carries out temper, temperature 3800C, is incubated 180min; Hammer leaf fixing end pin-and-hole part 24 uses intermediate frequency to make annealing treatment, and copper pipe is from hole week 1.5cm.
The present invention is operationally, material 7 enters into pulverizing chamber 5 from feeding warehouse 6 through being flexible coupling, material carries out high speed circular motion then through the first direction-changing 15 along the inner ring of sieve plate 10, owing to large granular materials is different with the quality of small particles material, therefore its centrifugal force is different, cause that large granular materials and small particles material easily carry out hierarchical motion, form circulation layer phenomenon, but after in the present invention, material enters sieve plate 10, and then enter in the groove 20 in sieve plate 10, material is impacted by the hammer leaf 14 making high speed rotating, add material and carry out the barrier force of circulation.
The present invention effectively destroys the circulation layer within pulverizing chamber 5, add the resistance of material circulation, improve material sieving rate, substantially increase crush efficiency, hammer leaf 14 has high-performance, long-life advantage, not only production cost is low, profit is high, and can be that domestic pulverizer industry saves great deal of steel, reduce energy resource consumption, promote industry energy-saving environmental protection, improve core competitive power, and the present invention adopts be flexible coupling 7 and noise elimination cotton 19, greatly reduce the operating noise of complete machine, alleviate the sound pollution to surrounding enviroment.
Above the better embodiment of this patent is explained in detail, but this patent is not limited to above-mentioned embodiment, in the ken that one skilled in the relevant art possesses, it is also possible under the premise without departing from this patent objective, make various change.
Claims (6)
1. a hammer crusher with high-wearing feature hammer leaf, including base (1), motor (2), shaft coupling (3), rotor (4), pulverizing chamber (5) and feeding warehouse (6), it is characterized in that, described motor (2) and pulverizing chamber (5) are installed on base (1), motor (2) is connected by shaft coupling (3) and rotor (4), rotor (4) other end stretches in pulverizing chamber (5), the outlet of described feeding warehouse (6) is connected with the import of pulverizing chamber (5) by be flexible coupling (7), described pulverizing chamber (5) includes casing (8), armature spindle (9), sieve plate (10), pressure screen frame (unit) (11), rotating disk (12), connecting pin (13), hammer leaf (14) and the first changed course structure (15), described armature spindle (9), sieve plate (10), pressure screen frame (unit) (11), rotating disk (12), connecting pin (13), it is internal that hammer leaf (14) and the first changed course structure (15) are arranged on casing (8), described casing (8) includes panel (17), inner panel (18) and silencing cotton (19), described silencing cotton (19) is positioned in the cavity between panel (17) and inner panel (18), described armature spindle (9) is arranged on the center of casing (8), described rotating disk (12) is provided with multiple, rotating disk (12) is fixedly mounted on armature spindle (9), rotating disk (12) is provided with multiple connecting pin bores equidistant with armature spindle (9), described connecting pin (13) is connected in connecting pin bores, described hammer leaf (14) is arranged on connecting pin (13), described sieve plate (10) is arranged in the casing (8) in hammer leaf (14) outside, sieve plate frame (11) is arranged on the periphery of sieve plate (10), what sieve plate (10) was internal corresponding with rotating disk (12) is provided with multiple groove (20), and the bottom of sieve plate (10) is provided with a groove (21), described first direction-changing (15) is arranged on the material inlet place of pulverizing chamber (4) upper end, it is wearing layer that the hammer leaf working tips (22) of described hammer leaf (14) is provided with the ceramic particle enhancing composite bed of more than WC50% content,In the middle part of hammer leaf, the textura epidermoidea of (23) is that fine acicular tempered martensite adds Refined Carbide Particle, phosphorus content 0.8-1.0%, transition zone is organized as fine acicular tempered martensite and adds lath-shaped tempered martensite, and core structure is lath-shaped tempered martensite, phosphorus content 0.2%; Hammer leaf fixing end pin-and-hole part (24) be organized as tempered sorbite.
2. the hammer crusher with high-wearing feature hammer leaf according to claim 1, it is characterized in that, the installation direction of described rotating disk (12) is vertical with the axis of rotor (4), and the installation direction of described connecting pin (13) is parallel with the axis of rotor (4).
3. the hammer crusher with high-wearing feature hammer leaf according to claim 1, it is characterised in that described hammer leaf (14) is at least provided with two kinds of length, and the hammer leaf that length is different (14) is for being staggered installation of.
4. the hammer crusher with high-wearing feature hammer leaf according to claim 1, it is characterized in that, the number of described rotating disk (12) and groove (20) is three, and the number of the upper connecting pin (13) of each rotating disk (12) and hammer leaf (14) is four.
5. the hammer crusher with high-wearing feature hammer leaf according to claim 1, it is characterised in that the distance between described adjacent two rotating disks (12) is 3-5cm.
6. the hammer crusher with high-wearing feature hammer leaf according to claim 1, it is characterized in that, the hardness of described hammer leaf working tips (22) is 63-65HRC, in the middle part of hammer leaf, (23) surface hardness is 48-53HRC, and the hardness of hammer leaf fixing end pin-and-hole part (24) is lower than 48HRC.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610077862.3A CN105665075A (en) | 2016-02-03 | 2016-02-03 | Hammer mill with high-wear-resistance hammers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610077862.3A CN105665075A (en) | 2016-02-03 | 2016-02-03 | Hammer mill with high-wear-resistance hammers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105665075A true CN105665075A (en) | 2016-06-15 |
Family
ID=56303593
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610077862.3A Pending CN105665075A (en) | 2016-02-03 | 2016-02-03 | Hammer mill with high-wear-resistance hammers |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105665075A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11319597A (en) * | 1998-05-20 | 1999-11-24 | Tadano Ltd | Crusher |
| CN201389472Y (en) * | 2009-03-31 | 2010-01-27 | 无锡市华明机器厂 | Hammer mill with secondary crushing groove structure |
| CN103990515A (en) * | 2014-05-28 | 2014-08-20 | 南通汉科新能源开发有限公司 | Hammer based on functional gradient composite material as well as preparation method of hammer |
| CN104668034A (en) * | 2015-02-02 | 2015-06-03 | 曹波 | High-efficiency muffling hammer slice crusher |
-
2016
- 2016-02-03 CN CN201610077862.3A patent/CN105665075A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11319597A (en) * | 1998-05-20 | 1999-11-24 | Tadano Ltd | Crusher |
| CN201389472Y (en) * | 2009-03-31 | 2010-01-27 | 无锡市华明机器厂 | Hammer mill with secondary crushing groove structure |
| CN103990515A (en) * | 2014-05-28 | 2014-08-20 | 南通汉科新能源开发有限公司 | Hammer based on functional gradient composite material as well as preparation method of hammer |
| CN104668034A (en) * | 2015-02-02 | 2015-06-03 | 曹波 | High-efficiency muffling hammer slice crusher |
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| PB01 | Publication | ||
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Application publication date: 20160615 |