CN215624775U - Improved chemical fertilizer cooling conveyor - Google Patents
Improved chemical fertilizer cooling conveyor Download PDFInfo
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- CN215624775U CN215624775U CN202120989404.3U CN202120989404U CN215624775U CN 215624775 U CN215624775 U CN 215624775U CN 202120989404 U CN202120989404 U CN 202120989404U CN 215624775 U CN215624775 U CN 215624775U
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Abstract
The utility model provides an improved chemical fertilizer cooling conveyor which comprises a top cover, a conveyor case, mounting bolts, a base, a refrigerating sheet, a support frame, a conveying motor, a conveying stirring rod, a conveying stirring blade, a discharging hopper, a material guide plate, a feeding cooling box structure, an adjustable dustproof heat dissipation pipe structure and a detachable cleaning rod structure, wherein the top cover is arranged at the upper part of the conveyor case, and ear plates integrally arranged at four corners of the lower part of the top cover and ear plates integrally arranged at four corners of the upper part of the conveyor case are fixedly connected and arranged through the mounting bolts; the refrigeration piece is connected to the lower side of the interior of the base through bolts, and the upper portion of the refrigeration piece is in contact with the lower portion of the conveyor case. The feeding hopper, the splash-proof cover, the feeding box, the exhaust net, the heat dissipation fan and the guide plate are arranged, so that the air cooling of the fertilizer is facilitated during feeding; the dust screen, the heat dissipation tuber pipe, the sleeve pipe, the setting of bracing piece, adjusting bolt and dust cover is favorable to discharging the steam that the fertilize produced of fever.
Description
Technical Field
The utility model belongs to the technical field of fertilizer conveying equipment, and particularly relates to an improved fertilizer cooling conveyor.
Background
The fertilizer is a substance which directly or indirectly supplies nutrients required by crops, improves the current situation of soil and improves the yield and quality of the crops, the fertilizer is a large variety of fertilizers and is divided into a simple substance fertilizer, a compound fertilizer and a medium and trace element fertilizer, the fertilizer has the characteristics of high nutrient content, small volume, small dosage and the like, and the fertilizer needs to be conveyed among different processing procedures in the production process of the fertilizer.
However, the existing fertilizer cooling conveyor also has the problems of inconvenient feeding and cooling, inconvenient hot air discharge and inconvenient cleaning.
Therefore, it is necessary to develop an improved fertilizer cooling conveyor.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problems, the utility model provides an improved fertilizer cooling conveyor which is convenient for feeding and cooling, is convenient for discharging hot air and is convenient for cleaning.
The utility model is realized by the following technical scheme:
an improved chemical fertilizer cooling conveyor comprises a top cover, a conveyor case, mounting bolts, a base, a refrigerating plate, a support frame, a conveying motor, a conveying stirring rod, a conveying stirring blade, a discharge hopper, a material guide plate, a feeding cooling case structure, an adjustable dustproof heat dissipation pipe structure and a detachable cleaning rod structure, wherein the top cover is arranged at the upper part of the conveyor case, and ear plates integrally arranged at four corners of the lower part of the top cover and ear plates integrally arranged at four corners of the upper part of the conveyor case are fixedly connected and arranged through the mounting bolts; the lower part of the conveyor case is connected to the upper side of the interior of the base through bolts; the refrigeration piece is connected to the lower side in the base through bolts, and the upper part of the refrigeration piece is in contact with the lower part of the conveyor case; the upper part of the supporting frame is connected to the lower part of the base through a bolt; the right side of the conveying motor is connected to the middle of the left side of the conveying case through a bolt, and an output shaft of the conveying motor penetrates through the middle of the left side of the conveying case; the left end coupling of the conveying stirring rod is connected to the right end of the output shaft of the conveying motor, and the right end bearing of the conveying stirring rod is connected to the middle part of the right inner wall of the conveying case; the conveying stirring blade is connected to the outer wall of the conveying stirring rod through a bolt; the upper end of the discharge hopper is connected with the inside of a discharge hole formed in the right side of the lower part of the conveyor case through a bolt, and the discharge hopper penetrates through the right side of the inside of the refrigerating sheet and the right side of the inside of the base from top to bottom in sequence; the left end of the material guide plate is connected to the left side of the lower part of the discharge hopper through a bolt; the feeding cooling box structure is connected with a top cover; the adjustable dustproof radiating pipe structure is connected with the top cover; the detachable cleaning rod structure is connected with the conveying stirring rod; the feeding cooling box structure comprises a feeding hopper, a splash cover, a feeding box, an exhaust net, a heat radiation fan and a guide plate, wherein the lower end of the feeding hopper is in threaded connection with the inside of a feeding hole formed in the right side of the inside of the splash cover; the splash-proof cover is buckled at the upper part of the feeding box; the two exhaust nets are respectively bolted inside air outlet through grooves formed in the upper parts of the left side and the right side of the feeding box; the heat radiation fan is connected to the inside of an air inlet through groove formed in the middle of the rear side of the feeding box through a bolt; the right end of the guide plate is connected with the upper part of the left side of the exhaust net arranged on the right side through a bolt.
Preferably, the lower end of the feeding box is connected to the inside of a feeding through groove formed in the left side of the inside of the top cover through a bolt.
Preferably, the left end of the guide plate is inclined downwards by an angle of 20-40 degrees.
Preferably, the adjustable dustproof radiating tube structure comprises a dustproof net, a radiating air tube, a sleeve, a supporting rod, an adjusting bolt and a dustproof cover, wherein the dustproof net is transversely bolted on the upper side inside the radiating air tube; the peripheral parts of the upper part of the heat dissipation air pipe are respectively connected with the sleeve pipes which are longitudinally arranged by bolts; the lower ends of the support rods which are longitudinally arranged are respectively inserted into the sleeves, the support rods and the sleeves are fastened and connected through adjusting bolts, and the upper ends of the support rods which are longitudinally arranged are respectively connected to four corners of the lower part of the dust cover through bolts.
Preferably, the lower end of the heat dissipation air pipe is connected with the inside of the air outlet formed in the middle of the inside of the top cover through a bolt.
Preferably, the detachable cleaning rod structure comprises two pipe clamps, a fastening bolt, a rotating rod, a cleaning rod and a brush layer, the two pipe clamps comprise an upper pipe clamp and a lower pipe clamp, the upper pipe clamp and the lower pipe clamp are fastened and connected through the fastening bolt, and the lower parts of the two lower pipe clamps are respectively bolted to the upper ends of the two rotating rods; the cleaning rod bearing is connected to the lower part between the two rotating rods, and the outer wall of the cleaning rod is connected with a brush layer through bolts.
Preferably, the two pipe clamps are respectively sleeved at the left end and the right end of the conveying stirring rod.
Compared with the prior art, the utility model has the beneficial effects that:
1. according to the utility model, the arrangement of the feed hopper, the splash-proof cover, the feed box, the exhaust net, the heat dissipation fan and the guide plate is beneficial to air cooling of the fertilizer during feeding.
2. According to the utility model, the arrangement of the dust screen, the heat dissipation air pipe, the sleeve, the support rod, the adjusting bolt and the dust cover is favorable for discharging hot air generated by the thermal chemical fertilizer.
3. According to the utility model, the pipe clamp, the fastening bolt, the rotating rod, the cleaning rod and the brush layer are arranged, so that the inner wall of the conveyor case can be cleaned conveniently.
4. According to the utility model, the arrangement of the top cover, the conveyor case and the mounting bolts is beneficial to conveniently disassembling or assembling the top cover.
5. In the utility model, the arrangement of the refrigerating sheet is beneficial to cooling the fertilizer.
6. According to the utility model, the arrangement of the conveying motor is beneficial to driving the conveying stirring rod to rotate.
7. According to the utility model, the arrangement of the conveying stirring rod and the conveying stirring blades is beneficial to stirring the fertilizer and improving the cooling effect.
8. In the utility model, the arrangement of the discharge hopper and the material guide plate is beneficial to discharging and conveying the cooled fertilizer.
Drawings
Fig. 1 is a schematic structural view of the present invention.
FIG. 2 is a schematic structural view of the feed cooling box structure of the present invention.
Fig. 3 is a schematic structural diagram of an adjustable dustproof heat dissipation tube structure according to the present invention.
FIG. 4 is a schematic structural view of a removable cleaning rod structure of the present invention.
In the figure:
1. a top cover; 2. a conveyor box; 3. installing a bolt; 4. a base; 5. a refrigeration plate; 6. a support frame; 7. a conveying motor; 8. a conveying stirring rod; 9. conveying the stirring blade; 10. a discharge hopper; 11. a material guide plate; 12. a feed cooling box structure; 121. a feed hopper; 122. a splash cover; 123. a feeding box; 124. an exhaust net; 125. a heat radiation fan; 126. a baffle; 13. the dustproof heat dissipation pipe structure can be adjusted; 131. a dust screen; 132. a heat dissipation air pipe; 133. a sleeve; 134. a support bar; 135. adjusting the bolt; 136. a dust cover; 14. a detachable cleaning rod structure; 141. a pipe clamp; 142. fastening a bolt; 143. rotating the rod; 144. a cleaning rod; 145. and a brush layer.
Detailed Description
The utility model is described in detail with reference to the accompanying drawings, and as shown in fig. 1 and fig. 2, an improved fertilizer cooling conveyor comprises a top cover 1, a conveyor case 2, mounting bolts 3, a base 4, a refrigerating sheet 5, a support frame 6, a conveying motor 7, a conveying stirring rod 8, a conveying stirring blade 9, a discharge hopper 10 and a material guide plate 11, wherein the top cover 1 is arranged at the upper part of the conveyor case 2, and lug plates integrally arranged at four corners of the lower part of the top cover 1 and lug plates integrally arranged at four corners of the upper part of the conveyor case 2 are fixedly connected and arranged through the mounting bolts 3; the lower part of the conveyor case 2 is connected with the upper side of the inside of the base 4 through bolts; the refrigeration piece 5 is connected to the lower side inside the base 4 through bolts, and the upper part of the refrigeration piece 5 is in contact with the lower part of the conveyor case 2; the upper part of the supporting frame 6 is connected with the lower part of the base 4 through bolts; the right side of the conveying motor 7 is connected to the middle of the left side of the conveyor case 2 through a bolt, and an output shaft of the conveying motor 7 penetrates through the middle of the left side of the conveyor case 2; the left end coupling of the conveying stirring rod 8 is connected to the right end of the output shaft of the conveying motor 7, the right end bearing of the conveying stirring rod 8 is connected to the middle part of the inner wall of the right side of the conveyor case 2, an externally arranged power supply is connected with the conveying motor 7, and the conveying motor 7 drives the conveying stirring rod 8 to rotate; the conveying stirring blades 9 are connected to the outer wall of the conveying stirring rod 8 through bolts, and when the conveying stirring rod 8 rotates, the conveying stirring blades 9 are driven to rotate, so that fertilizer particles are stirred; the upper end of the discharge hopper 10 is connected with the inside of a discharge hole formed in the right side of the lower part of the conveyor case 2 through bolts, and the discharge hopper 10 sequentially penetrates through the right side of the inside of the refrigerating sheet 5 and the right side of the inside of the base 4 from top to bottom; the left end of the material guide plate 11 is connected to the left side of the lower part of the discharge hopper 10 through bolts, and during discharging, fertilizer particles are guided out of the conveyor case 2 through the discharge hopper 10 and the material guide plate 11.
The improved fertilizer cooling conveyor further comprises a feeding cooling box structure 12, an adjustable dustproof heat dissipation pipe structure 13 and a detachable cleaning rod structure 14, wherein the feeding cooling box structure 12 is connected with the top cover 1, so that the function of air cooling of a fertilizer during feeding is realized; the adjustable dustproof heat dissipation pipe structure 13 is connected with the top cover 1, so that the function of discharging hot gas generated by the thermal chemical fertilizer is realized; the detachable cleaning rod structure 14 is connected with the conveying stirring rod 8, so that the function of cleaning the inner wall of the conveyor case 2 is realized.
The feeding cooling box structure 12 comprises a feeding hopper 121, a splash cover 122, a feeding box 123, an exhaust net 124, a heat radiation fan 125 and a guide plate 126, wherein the lower end of the feeding hopper 121 is in threaded connection with the inside of a feeding hole formed in the right side of the inside of the splash cover 122; the splash cover 122 is buckled on the upper part of the feeding box 123, fertilizer particles to be cooled are poured into the feeding box 123 through the feeding hopper 121, and the splash cover 122 avoids the situation that the fertilizer particles are collided to the outside of the feeding box 123 during feeding; the two exhaust nets 124 are respectively bolted inside air outlet through grooves formed in the upper parts of the left side and the right side of the feeding box 123; the heat dissipation fan 125 is bolted to the inside of an air inlet through groove formed in the middle of the rear side of the feeding box 123, the heat dissipation fan 125 is connected with an externally arranged power supply, and the heat dissipation fan 125 blows and cools fertilizer particles to be cooled; the right-hand member bolted connection of guide plate 126 the right side set up exhaust net 124's left side upper portion, guide plate 126 has increased the journey of treating the chemical fertilizer granule whereabouts of cooling to the air-cooled effect has been improved.
In this embodiment, referring to fig. 3, the adjustable dustproof heat dissipation pipe structure 13 includes a dustproof net 131, a heat dissipation air pipe 132, a sleeve 133, a support rod 134, an adjusting bolt 135 and a dustproof cover 136, the dustproof net 131 is transversely bolted to the upper side inside the heat dissipation air pipe 132, hot air generated in the fertilizer granule conveying process is exhausted through the heat dissipation air pipe 132, the dustproof net 131 intercepts stirred fertilizer granules, and the fertilizer granules are prevented from being stirred to the outside of the heat dissipation air pipe 132; the peripheral parts of the upper part of the heat dissipation air pipe 132 are respectively connected with the sleeve 133 which is longitudinally arranged by bolts; a plurality of vertical settings bracing piece 134 respectively the lower extreme peg graft in a plurality of sleeve pipe 133 inside, bracing piece 134 and sleeve pipe 133 pass through adjusting bolt 135 fastening connection and set up, when not carrying out the fertilizer transportation, operating personnel loosens adjusting bolt 135, with bracing piece 134 along sleeve pipe 133 downstream, cover the upper portion of heat dissipation tuber pipe 132 up to dust cover 136, play dirt-proof effect, and a plurality of vertical settings bracing piece 134 respectively upper end bolted connection in the lower part four corners position of dust cover 136, dust cover 136 avoid impurity such as outside dust to sneak into the condition in the fertilizer granule through heat dissipation tuber pipe 132.
In this embodiment, as shown in fig. 4, the detachable cleaning rod structure 14 includes two pipe clamps 141, two fastening bolts 142, a rotating rod 143, a cleaning rod 144 and a brush layer 145, the pipe clamps 141 include an upper pipe clamp and a lower pipe clamp, the upper pipe clamp and the lower pipe clamp are fastened and connected through the fastening bolts 142, and the lower portions of the two lower pipe clamps are respectively bolted to the upper ends of the two rotating rods 143, so that an operator fixes the pipe clamps 141 and the conveying stirring rod 8, and drives the rotating rods 143 to rotate when the conveying stirring rod 8 rotates; the cleaning rod 144 is connected to the lower part between the two rotating rods 143 through a bearing, the outer wall of the cleaning rod 144 is connected with the brush layer 145 through a bolt, and the rotating rods 143 drive the cleaning rod 144 and the brush layer 145 to rotate so as to clean the inner wall of the conveyor case 2.
In this embodiment, specifically, the lower end of the feeding box 123 is bolted to the inside of the feeding through groove formed in the left side of the inside of the top cover 1.
In this embodiment, specifically, the left end of the air deflector 126 is inclined downward at an angle of 20 ° to 40 °.
In this embodiment, specifically, the lower end of the heat dissipation air duct 132 is bolted to the inside of the air outlet formed in the middle of the inside of the top cover 1.
In this embodiment, specifically, the two pipe clamps 141 are respectively sleeved at the left and right ends of the conveying stirring rod 8.
In this embodiment, specifically, the brush layer 145 is disposed below the conveying stirring vane 9.
In this embodiment, specifically, the splash cover 122 is an aluminum cover; the exhaust net 124 adopts a stainless steel net; the deflector 126 is made of aluminum plate.
In this embodiment, specifically, the dust-proof net 131 is a stainless steel net; the dust cover 136 is an aluminum alloy cover.
In this embodiment, specifically, the pipe clamp 141 is a two-piece aluminum alloy pipe clamp; the cleaning rod 144 is made of aluminum alloy.
In this embodiment, specifically, the conveying motor 7 is a BLD type motor; the refrigerating piece 5 adopts a TEC1-12706 type semiconductor refrigerating piece; the heat dissipation fan 125 is an SF axial flow motor.
In this embodiment, specifically, the base 4 is made of a topless aluminum base; the support frame 6 is a trapezoidal aluminum alloy support frame; the conveying stirring blade 9 adopts a stainless steel spiral stirring blade; the material guide plate 11 is made of aluminum alloy plate, and the downward inclination angle of the right end of the material guide plate 11 is set to be 30-45 degrees.
Principle of operation
In the utility model, an operator connects the cooling fan 125 with an external power supply, fertilizer particles to be cooled are poured into the feeding box 123 through the feeding hopper 121, the fertilizer particles to be cooled enter the conveyor case 2 through the guide plate 126, the guide plate 126 increases the falling distance of the fertilizer particles to be cooled, and the cooling fan 125 blows and cools the fertilizer particles to be cooled in the falling process of the fertilizer particles to be cooled, so that the function of cooling the fertilizer particles is realized; an operator connects the refrigerating plate 5 and the conveying motor 7 with an externally arranged power supply respectively, fertilizer particles are conveyed from left to right in the conveyor case 2, and the refrigerating plate 5 cools the fertilizer particles in the conveying process; hot air generated in the fertilizer particle conveying process is discharged through the heat-dissipation air pipe 132, the dust-proof net 131 intercepts the stirred fertilizer particles, the situation that the fertilizer particles are stirred to the outside of the heat-dissipation air pipe 132 is avoided, the situation that impurities such as external dust are mixed into the fertilizer particles through the heat-dissipation air pipe 132 is avoided through the dust-proof net 136, when fertilizer transportation is not carried out, an operator loosens the adjusting bolt 135 and moves the supporting rod 134 downwards along the sleeve 133 until the dust-proof net 136 covers the upper part of the heat-dissipation air pipe 132, and the dust-proof effect is achieved; the operating personnel overlaps pipe clamp 141 to the both ends about carrying puddler 8, and is fixed with pipe clamp 141 and carrying puddler 8 through fastening bolt 142, when carrying puddler 8 and rotating, drives dwang 143 and rotates, and dwang 143 drives cleaning rod 144 and brush layer 145 and rotates, cleans the inner wall of conveyer case 2, avoids the chemical fertilizer granule to glue the condition of conveyer case 2 inner wall.
The technical solutions of the present invention or similar technical solutions designed by those skilled in the art based on the teachings of the technical solutions of the present invention are all within the scope of the present invention.
Claims (7)
1. The improved fertilizer cooling conveyor is characterized by comprising a top cover (1), a conveyor case (2), mounting bolts (3), a base (4), a refrigerating sheet (5), a supporting frame (6), a conveying motor (7), a conveying stirring rod (8), conveying stirring blades (9), a discharging hopper (10), a material guide plate (11), a feeding cooling box structure (12), an adjustable dustproof heat dissipation pipe structure (13) and a detachable cleaning rod structure (14), wherein the top cover (1) is arranged on the upper portion of the conveyor case (2), and ear plates integrally arranged at four corners of the lower portion of the top cover (1) and ear plates integrally arranged at four corners of the upper portion of the conveyor case (2) are fixedly connected and arranged through the mounting bolts (3); the lower part of the conveyor case (2) is connected with the upper side of the inside of the base (4) through bolts; the refrigeration piece (5) is connected to the lower side in the base (4) through bolts, and the upper part of the refrigeration piece (5) is in contact with the lower part of the conveyor case (2); the upper part of the supporting frame (6) is connected with the lower part of the base (4) through a bolt; the right side of the conveying motor (7) is connected to the middle of the left side of the conveying case (2) through a bolt, and an output shaft of the conveying motor (7) penetrates through the middle of the left side of the conveying case (2); the left end coupling of the conveying stirring rod (8) is connected to the right end of the output shaft of the conveying motor (7), and the right end bearing of the conveying stirring rod (8) is connected to the middle part of the right inner wall of the conveyor case (2); the conveying stirring blade (9) is connected to the outer wall of the conveying stirring rod (8) through a bolt; the upper end of the discharge hopper (10) is connected with the inside of a discharge port formed in the right side of the lower part of the conveyor case (2) through bolts, and the discharge hopper (10) sequentially penetrates through the right side of the inside of the refrigerating sheet (5) and the right side of the inside of the base (4) from top to bottom; the left end of the material guide plate (11) is connected to the left side of the lower part of the discharge hopper (10) through a bolt; the feeding cooling box structure (12) is connected with the top cover (1); the adjustable dustproof heat dissipation pipe structure (13) is connected with the top cover (1); the detachable cleaning rod structure (14) is connected with the conveying stirring rod (8); the feeding cooling box structure (12) comprises a feeding hopper (121), a splash cover (122), a feeding box (123), an exhaust net (124), a heat dissipation fan (125) and a guide plate (126), wherein the lower end of the feeding hopper (121) is in threaded connection with the inside of a feeding hole formed in the right side of the inside of the splash cover (122); the splash-proof cover (122) is buckled on the upper part of the feeding box (123); the two exhaust nets (124) are respectively connected inside an air outlet through groove formed in the upper parts of the left side and the right side of the feeding box (123) through bolts; the heat radiation fan (125) is connected to the inside of an air inlet through groove formed in the middle of the rear side of the feeding box (123) through bolts; the right end of the guide plate (126) is connected with the upper part of the left side of the exhaust net (124) arranged on the right side through a bolt.
2. The improved fertilizer cooling conveyor as claimed in claim 1, wherein the lower end of the feeding box (123) is bolted to the inside of a feeding through groove formed on the left side of the inside of the top cover (1).
3. The improved fertilizer cooling conveyor as claimed in claim 1 wherein the left end of said deflector (126) is inclined downwardly at an angle of 20 ° to 40 °.
4. The improved fertilizer cooling conveyor as claimed in claim 1, wherein said adjustable dustproof heat pipe structure (13) comprises a dustproof net (131), a heat pipe (132), a sleeve (133), a support rod (134), an adjusting bolt (135) and a dustproof cover (136), said dustproof net (131) is transversely bolted on the inner upper side of the heat pipe (132); the peripheral parts of the upper part of the heat dissipation air pipe (132) are respectively connected with the sleeve (133) which is longitudinally arranged by bolts; the lower ends of the support rods (134) which are longitudinally arranged are respectively inserted into the sleeves (133), the support rods (134) and the sleeves (133) are fixedly connected through adjusting bolts (135), and the upper ends of the support rods (134) which are longitudinally arranged are respectively connected to four corners of the lower part of the dust cover (136) through bolts.
5. The improved fertilizer cooling conveyor as claimed in claim 4, wherein the lower end of the heat dissipating air pipe (132) is bolted to the inside of the air outlet opening formed in the middle part of the inside of the top cover (1).
6. The improved fertilizer cooling conveyor as claimed in claim 1, wherein said detachable cleaning rod structure (14) comprises two pipe clamps (141), a fastening bolt (142), a rotating rod (143), a cleaning rod (144) and a brush layer (145), said pipe clamps (141) comprise an upper pipe clamp and a lower pipe clamp, said upper pipe clamp and said lower pipe clamp are fastened by the fastening bolt (142), and the lower parts of said two lower pipe clamps are respectively bolted to the upper ends of said two rotating rods (143); the cleaning rod (144) is in bearing connection with the lower part between the two rotating rods (143), and the outer wall of the cleaning rod (144) is in bolted connection with a brush layer (145).
7. The improved fertilizer cooling conveyor as claimed in claim 6, wherein two pipe clamps (141) are respectively sleeved at the left and right ends of the conveying stirring rod (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120989404.3U CN215624775U (en) | 2021-05-11 | 2021-05-11 | Improved chemical fertilizer cooling conveyor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120989404.3U CN215624775U (en) | 2021-05-11 | 2021-05-11 | Improved chemical fertilizer cooling conveyor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215624775U true CN215624775U (en) | 2022-01-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120989404.3U Active CN215624775U (en) | 2021-05-11 | 2021-05-11 | Improved chemical fertilizer cooling conveyor |
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| Country | Link |
|---|---|
| CN (1) | CN215624775U (en) |
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2021
- 2021-05-11 CN CN202120989404.3U patent/CN215624775U/en active Active
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