CN220737775U - Hammer crusher is used in potash fertilizer production - Google Patents
Hammer crusher is used in potash fertilizer production Download PDFInfo
- Publication number
- CN220737775U CN220737775U CN202322288144.9U CN202322288144U CN220737775U CN 220737775 U CN220737775 U CN 220737775U CN 202322288144 U CN202322288144 U CN 202322288144U CN 220737775 U CN220737775 U CN 220737775U
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- CN
- China
- Prior art keywords
- hammer
- shaft
- pulverizer
- rotor
- potash fertilizer
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- 239000003337 fertilizer Substances 0.000 title claims abstract description 24
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 title claims abstract description 22
- 229940072033 potash Drugs 0.000 title claims abstract description 22
- 235000015320 potassium carbonate Nutrition 0.000 title claims abstract description 22
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Substances [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 title claims abstract description 22
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 14
- 239000000463 material Substances 0.000 claims abstract description 45
- 230000005540 biological transmission Effects 0.000 claims abstract description 4
- 230000007935 neutral effect Effects 0.000 claims description 3
- 241000251131 Sphyrna Species 0.000 abstract description 18
- 238000000034 method Methods 0.000 abstract description 3
- OTYBMLCTZGSZBG-UHFFFAOYSA-L potassium sulfate Chemical compound [K+].[K+].[O-]S([O-])(=O)=O OTYBMLCTZGSZBG-UHFFFAOYSA-L 0.000 abstract description 3
- 229910052939 potassium sulfate Inorganic materials 0.000 abstract description 3
- 235000011151 potassium sulphates Nutrition 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 abstract description 2
- 239000000126 substance Substances 0.000 abstract description 2
- 239000002245 particle Substances 0.000 description 11
- 230000000694 effects Effects 0.000 description 5
- 238000010298 pulverizing process Methods 0.000 description 5
- 238000012423 maintenance Methods 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
- 238000007599 discharging Methods 0.000 description 2
- 239000012467 final product Substances 0.000 description 2
- 235000015097 nutrients Nutrition 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 238000010408 sweeping Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011362 coarse particle Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000004720 fertilization Effects 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000007873 sieving Methods 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
Landscapes
- Crushing And Pulverization Processes (AREA)
Abstract
The utility model relates to the technical field of crushers, in particular to a hammer crusher for producing potash fertilizer, which at least comprises: the rotor is fixedly restrained in the stator shell by a universal bearing seat to perform rotary motion; the power mechanism transmits the torque of the motor to the rotary shaft of the pulverizer through the transmission mechanism, so that the rotor of the pulverizer rotates, and the power mechanism is characterized in that: the rotor comprises a rotary shaft, end plates, a hammer shaft, hammer heads and S-shaped hammer heads, wherein the end plates are sleeved on the rotary shaft, 4 end plates are axially arranged, and 4 uniformly distributed holes are formed in the end surfaces of the end plates; the number of the hammer shafts is 4, and the 4 hammer shafts penetrate through holes on the end disc and the hammer head to hang the hammer head on the hammer shaft. The method is used for crushing the blocky materials in the production process of the potassium sulfate fertilizer in the chemical industry, and is suitable for the crushing technology of similar materials.
Description
Technical Field
The utility model relates to the technical field of crushers, in particular to a hammer crusher for producing potash fertilizer, which is used for crushing massive materials in the production process of potassium sulfate fertilizer in the chemical industry and is suitable for the crushing technology of similar materials.
Background
For the blocky potash fertilizer produced by the Mannheim reaction furnace, a pulverizer is needed to be pulverized into a final product. In the production process of the Mannheim reaction furnace, after the potash fertilizer is discharged from the furnace and cooled, blocky materials with different sizes can be formed, and the blocky materials do not meet the requirements of direct users on particle sizes. In order for a direct user of potash fertilizer to be a plant nutrient so that the plant can fully absorb its nutrients, it is generally necessary to control the particle size of the potash fertilizer (potassium sulfate) particles to a uniform range of about 1mm in order to facilitate the fertilization effect.
In order to meet the user's requirements, another process is needed, namely, a pulverizer pulverizes the blocky potash fertilizer and prepares the final product with the corresponding required particle size.
The existing potash fertilizer pulverizer mostly adopts a hammer pulverizer. See fig. 1.
The hammer mill includes: the rotor consists of a main shaft, a spacing disc, a spacing shaft sleeve, a hammer head shaft and a hammer head, wherein the hammer head shaft and the hammer head are assembled on the spacing disc. The rotor assembly is limited to the pulverizer stator by means of support bearings at both ends of the central shaft, and can only perform rotary circular motion. The stator part consists of a shell, a material inlet, a material outlet, a sieve plate, a support and the like. 4 sets of hammers are symmetrically arranged in the circumferential direction of the rotor, each set of hammers penetrates through the same hammer shaft, the hammers can rotate circumferentially around the hammer shaft, when the rotor integrally rotates, the hammers are in the radial direction due to the centrifugal force of the hammers, when materials enter the pulverizer along the direction indicated by the middle arrow, a part of the materials collide with the rotating hammers, the materials are broken, and the pulverizer plays a role in pulverizing the materials. Every 4 hammers of the general pulverizer are arranged on an end disc and are positioned on the same rotation plane, a certain gap distance is reserved between the general pulverizer and 4 hammers arranged on the adjacent rotation plane or between the general pulverizer and the adjacent pulverizer shell, materials in the gap are not in the path of rotation of the hammers, when a rotor runs, the materials in the gap cannot be directly hit by the hammers, the time for pulverizing the materials into qualified granules is prolonged, and the pulverizing efficiency (the discharging amount in unit time) and the discharging force of the pulverizer are influenced and reduced.
Because the general pulverizer in the above structural form has a material-free area in which the material cannot be directly hit, the directions of the material passing through the aperture of the screen plate in the material-free area and the material passing through the aperture of the screen plate are inconsistent, and the direction of the path of the material passing through the screen plate due to the tangential force generated by hammering the material by the hammer head in the material-free area increases with the included angle of the aperture axis of the screen plate as shown in fig. 2. The path direction of the material passing through the aperture of the sieve plate in the material-holding area is close to the axis direction of the aperture of the sieve plate, namely, the included angle between the path direction and the aperture of the sieve plate becomes smaller (alpha > beta), as shown in figure 3. When the angle is larger and the angle is smaller, the projection area of the aperture of the sieve plate along the material passing direction is different (a < b), the larger the angle difference is, the larger the difference of the aperture of the sieve plate is, thereby generating different sieving effects, and the uniformity of the particle size of the discharged material after crushing is poor.
In addition, the general hammer mill inlet shape and location is designed in the middle of the upper inlet of the mill. The inlet channel cross-sectional shape is unchanged and the material enters approximately parallel, see fig. 4. After the materials fall into the pulverizer, the materials are firstly concentrated at the axial middle position of the pulverizer (see figure 5), and as the materials are excessively concentrated at the middle position, the axial direction of the pulverizer hammer head is inconsistent in output, the load of the middle hammer head is large, the abrasion is faster, the overall pulverizing efficiency is reduced, and the maintenance period of the pulverizer is shortened.
Disclosure of Invention
The first object of the utility model is to provide a hammer crusher for potash fertilizer production, which has short crushing time of materials into qualified material particles and can greatly improve the crushing efficiency of the crusher.
The second purpose of the utility model is to provide the hammer crusher for producing potash fertilizer, which has good uniformity of particle size of materials discharged after crushing, is convenient for packaging and transportation and is convenient for users to use.
The utility model aims at providing a hammer crusher for producing potash fertilizer, which has a short maintenance period.
The utility model aims to realize that a hammer crusher for producing potash fertilizer at least comprises: the rotor is fixedly restrained in the stator shell by a universal bearing seat (12) to perform rotary motion; the power mechanism transmits the torque of the motor to a rotary shaft (5) of the pulverizer through the transmission mechanism, so that a rotor of the pulverizer rotates, and the pulverizer is characterized in that: the rotor comprises a rotary shaft (5), end discs (6), a hammer shaft (7), a hammer head (2) and an S-shaped hammer head (4), wherein the end discs (6) are sleeved on the rotary shaft (5), 4 end discs (6) are axially arranged, and 4 uniformly distributed holes are formed in the end face of each end disc (6); the number of the hammer shafts (7) is 4, and the 4 hammer shafts (7) penetrate through holes on the end disc and the hammer head (2) to hang the hammer head (2) on the hammer shaft (7).
The hammer head (2) is hung on the hammer shaft (7) through a hole at one end of the hammer head, the hammer head (2) can rotate around the circumference of the hammer shaft (7), and the hammer shaft (7) simultaneously penetrates through the end disc (6) to be fixed on the end disc (6).
Bearing seats (12) are arranged at two ends of the rotary shaft (5), and the bearing seats (12) are fixedly connected with the stator housing (10).
The stator includes: the shell (10), the sieve plate (9), the feed inlet (3) and the blanking hopper (11), the through-flow section of the feed inlet (3) on the stator is an axial splash-expansion feed inlet, so that the uniformity of axial distribution is ensured when materials enter the pulverizer.
The end disc (6) is provided with S-shaped hammers (4) which are circumferentially symmetrical and are positioned at neutral positions where the hammer shafts (7) are arranged.
The S-shaped hammer head (4) is fixed with the end disc (6) through the fixing bolt (8), and the S-shaped hammer head (4) rotates along with the rotor.
The utility model has the advantages that:
1. due to the fact that the hammerheads on the adjacent hammer shafts are arranged in a staggered mode, when the rotor rotates, the swept space is large, the probability of collision between the hammerheads and materials is improved, and therefore the crushing efficiency of the crusher is improved.
2. The S-shaped hammer head is fixed on the end disc, so that on one hand, the effect of supplementing the swept space of the hammer head and crushing materials can be achieved, and the stirring and stirring effects on the materials in the material-staying area can be achieved, so that when the materials pass through the sieve plate, the particles pass through the sieve hole direction and angle are homogenized. Thereby improving the effect of homogenizing the particle size after crushing the material (the difference between the particle sizes of coarse particles and fine particles becomes small).
3. The axially gradually-expanded feeding hole can ensure that materials are uniformly distributed axially when entering the pulverizer, reduce uneven wear of the hammer head of the pulverizer and the easily-worn parts, and improve the average service life of the worn parts.
Drawings
The utility model is further described with reference to the accompanying drawings of embodiments:
FIG. 1 is a basic structure of a conventional general hammer mill;
FIG. 2 is a schematic view of the direction of the material passing through the screen plate in the non-material-retaining zone of the conventional general pulverizer;
FIG. 3 is a schematic view of the direction of the material passing through the screen plate in the material-retaining area of the conventional general pulverizer;
FIG. 4 is a side view of a material inlet of a conventional general purpose hammer mill;
FIG. 5 is a front view of a material inlet of a conventional general hammer mill;
FIG. 6 is a schematic diagram of an embodiment of the present utility model;
FIG. 7 is a schematic side cross-sectional view of FIG. 6;
FIG. 8 is a schematic view of the internal rotor structure of the pulverizer of the present utility model;
FIG. 9 is a front view of the crusher rotor with hammerhead in position and screen plate;
FIG. 10 is a top view of the shredder rotor in the position of the hammer head of the present utility model;
FIG. 11 is a schematic side view of the feed inlet of the pulverizer of the present utility model;
fig. 12 is a front view of the inlet of the pulverizer of the present utility model.
In the figure, 1, an electric motor; 2. a hammer head; 3. a feed inlet; 4. s-shaped hammer head; 5. a rotating shaft; 6. an end plate; 7. a hammer shaft; 8. a fixing bolt; 9. a sieve plate; 10. a housing; 11. a blanking hopper; 12. and a bearing seat.
Detailed Description
As shown in fig. 6 and 7, a hammer mill for potash fertilizer production is characterized in that: at least comprises: a rotor, a stator and a power mechanism,
the rotor is fixedly restrained in the stator shell by a universal bearing seat 12 to perform rotary motion;
the power mechanism transmits torque of a motor (other prime movers) to a rotary shaft 5 of the pulverizer through a transmission mechanism (a belt pulley and a belt in this example) to rotate a rotor of the pulverizer.
The rotor comprises a rotary shaft 5, end plates 6, a hammer shaft 7, hammer heads 2 and S-shaped hammer heads 4, wherein the end plates 6 are sleeved on the rotary shaft 5, 4 end plates 6 are axially arranged, and 4 uniformly distributed holes are formed in the end faces of the end plates 6; the number of the hammer shafts 7 is 4, and the 4 hammer shafts 7 penetrate through holes on the end disc and the hammer heads 2 to hang the hammer heads 2 on the hammer shafts 7.
The hammer head 2 on the rotor is hung on the hammer shaft 7 through a hole at one end of the hammer head, the hammer head 2 can rotate around the circumference of the hammer shaft 7, and the hammer shaft 7 passes through the end disc 6 and is fixed on the end disc 6.
Bearing seats 12 are arranged at two ends of the rotary shaft 5, and are fixedly connected with the stator housing 10 through the bearing seats 12.
The stator includes: the shell 10, the sieve plate 9, the feed inlet 3 and the blanking hopper 11, wherein the through-flow section of the feed inlet 3 on the stator is an axial splash-expansion feed inlet, so that the uniformity of axial distribution is ensured when materials enter the pulverizer, as shown in fig. 11 and 12. The uniformity is beneficial to uniform output of all hammerheads 2 of the pulverizer, and the average service life of the hammerheads of the pulverizer is prolonged, so that the maintenance period is prolonged.
In the utility model, the end plate 6 is provided with the S-shaped hammer heads 4 (see figure 8) which are circumferentially symmetrical and are positioned at the neutral position of the hammer shaft 7.
The S-shaped hammer head 4 fixes the S-shaped hammer head and the end plate 6 together by the fixing bolt 8. The S-shaped hammer head 4 rotates along with the rotor, and the circumferential sweeping space is complemented with the hammer head sweeping space, so that the crushing efficiency of the crusher is further improved.
In the utility model, 4 end plates 6 are uniformly arranged in the axial direction, and 4 hammer shafts 7 are uniformly distributed along the circumference of the end plates 6; the hammerhead 2 is hung on the hammer shafts 7 through holes on the hammerheads, 6 hammerheads are hung on each hammer shaft, wherein the hammerheads 2 on each adjacent hammer shaft 7 (A group hammer shaft is adjacent to B group hammer shaft and C group hammer shaft, and the other hammerheads are similar to the other hammers in fig. 9 and 10) are arranged in a staggered way in the axial direction, as shown in fig. 9 and 10, namely, A group hammer shafts (A1-A4), B group hammer shafts (B1-B4) and C group hammer shafts (C1-C4) are arranged in a staggered way, after the staggered arrangement, more space swept by the hammerheads in the rotation process of a rotor can be ensured, and the crushing efficiency of materials is improved.
The utility model can overcome the problems of the general pulverizer structure, and further proves that the pulverizer greatly improves the pulverizing efficiency of the pulverizer and improves the uniformity of the particle size of the pulverized materials after the pulverizer is applied in the actual potash fertilizer production process.
Claims (6)
1. A hammer mill for potash fertilizer production at least comprises: the rotor is fixedly restrained in the stator shell by a universal bearing seat (12) to perform rotary motion; the power mechanism transmits the torque of the motor to a rotary shaft (5) of the pulverizer through the transmission mechanism, so that a rotor of the pulverizer rotates, and the pulverizer is characterized in that: the rotor comprises a rotary shaft (5), end discs (6), a hammer shaft (7), a hammer head (2) and an S-shaped hammer head (4), wherein the end discs (6) are sleeved on the rotary shaft (5), 4 end discs (6) are axially arranged, and 4 uniformly distributed holes are formed in the end face of each end disc (6); the number of the hammer shafts (7) is 4, and the 4 hammer shafts (7) penetrate through holes on the end disc and the hammer head (2) to hang the hammer head (2) on the hammer shaft (7).
2. The hammer mill for potash fertilizer production of claim 1, wherein: the hammer head (2) is hung on the hammer shaft (7) through a hole at one end of the hammer head, the hammer head (2) can rotate around the circumference of the hammer shaft (7), and the hammer shaft (7) simultaneously penetrates through the end disc (6) to be fixed on the end disc (6).
3. The hammer mill for potash fertilizer production of claim 1, wherein: bearing seats (12) are arranged at two ends of the rotary shaft (5), and the bearing seats (12) are fixedly connected with the stator housing (10).
4. The hammer mill for potash fertilizer production of claim 1, wherein: the stator includes: the shell (10), the sieve plate (9), the feed inlet (3) and the blanking hopper (11), the through-flow section of the feed inlet (3) on the stator is an axial splash-expansion feed inlet, so that the uniformity of axial distribution is ensured when materials enter the pulverizer.
5. The hammer mill for potash fertilizer production of claim 1, wherein: the end disc (6) is provided with S-shaped hammers (4) which are circumferentially symmetrical and are positioned at neutral positions where the hammer shafts (7) are arranged.
6. The hammer mill for potash fertilizer production of claim 1, wherein: the S-shaped hammer head (4) is fixed with the end disc (6) through the fixing bolt (8), and the S-shaped hammer head (4) rotates along with the rotor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322288144.9U CN220737775U (en) | 2023-08-24 | 2023-08-24 | Hammer crusher is used in potash fertilizer production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322288144.9U CN220737775U (en) | 2023-08-24 | 2023-08-24 | Hammer crusher is used in potash fertilizer production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220737775U true CN220737775U (en) | 2024-04-09 |
Family
ID=90563669
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322288144.9U Active CN220737775U (en) | 2023-08-24 | 2023-08-24 | Hammer crusher is used in potash fertilizer production |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220737775U (en) |
-
2023
- 2023-08-24 CN CN202322288144.9U patent/CN220737775U/en active Active
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