CA2702597A1 - Crushing and blending system and method - Google Patents
Crushing and blending system and method Download PDFInfo
- Publication number
- CA2702597A1 CA2702597A1 CA 2702597 CA2702597A CA2702597A1 CA 2702597 A1 CA2702597 A1 CA 2702597A1 CA 2702597 CA2702597 CA 2702597 CA 2702597 A CA2702597 A CA 2702597A CA 2702597 A1 CA2702597 A1 CA 2702597A1
- Authority
- CA
- Canada
- Prior art keywords
- output
- crushing
- screen
- crusher
- screened
- 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.)
- Abandoned
Links
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
- B02C1/00—Crushing or disintegrating by reciprocating members
- B02C1/02—Jaw crushers or pulverisers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
- B02C23/10—Separating or sorting of material, associated with crushing or disintegrating with separator arranged in discharge path of crushing or disintegrating zone
- B02C23/12—Separating or sorting of material, associated with crushing or disintegrating with separator arranged in discharge path of crushing or disintegrating zone with return of oversize material to crushing or disintegrating zone
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
- B02C23/14—Separating or sorting of material, associated with crushing or disintegrating with more than one separator
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Mechanical Engineering (AREA)
- Disintegrating Or Milling (AREA)
Abstract
A crushing apparatus for crushing a material including a first crusher for crushing the material into a first output; a first conveyor for transporting the first output; a first screen for separating the first output conveyed by the first conveyor into a first screened material and a second screened material; a second crusher for crushing the second screened material into a second output; a second conveyor for transporting the second output and the first screened material that are respectively received from the second crusher and the first screen; and a second screen for separating the second output and the first screen material conveyed by the second conveyor into a product material and a third screened material;
wherein the third screened material is received by the first conveyor.
wherein the third screened material is received by the first conveyor.
Description
CRUSHING AND BLENDING SYSTEM AND METHOD
FIELD OF THE INVENTION
[0001] The present invention relates to a crushing and blending system and method.
More specifically, the present invention is concerned with a crushing and blending plant and method which allows for the efficient and cost effective crushing and blending of drill core or rock for lab sampling ahead of a bench scale floatation or pilot plant testwork.
BACKGROUND OF THE INVENTION
FIELD OF THE INVENTION
[0001] The present invention relates to a crushing and blending system and method.
More specifically, the present invention is concerned with a crushing and blending plant and method which allows for the efficient and cost effective crushing and blending of drill core or rock for lab sampling ahead of a bench scale floatation or pilot plant testwork.
BACKGROUND OF THE INVENTION
[0002] In the mining industry, the preparation of drill core or rock (top size 6 inch) through crushing and blending is an important first step ahead of bench scale flotation or pilot plant testwork.
[0003] There is known in the prior art systems and methods which employ various connected stages for crushing and mixing for the processing of rock materials.
However, such know prior art system and methods are somewhat inefficient and costly.
There is therefore a need for a more efficient system and methods for crushing and blending of rock or drill core in preparation for use ahead of a bench scale floatation or pilot plant testwork.
SUMMARY OF THE INVENTION
However, such know prior art system and methods are somewhat inefficient and costly.
There is therefore a need for a more efficient system and methods for crushing and blending of rock or drill core in preparation for use ahead of a bench scale floatation or pilot plant testwork.
SUMMARY OF THE INVENTION
[0004] More specifically, in accordance with the present invention, there is provided an efficient crushing and blending system that produces high quality blended material by reiteratively crushing and then mixing rock or drill core for preparation for use ahead of a bench scale floatation or pilot plant testwork.
[0005] In embodiments, the crushing and blending system according to the present invention produces blended material with a level of relative standard deviation (RSD) of less than five percent (5%) and which does so in a fraction of the time compared to that of manual methods.
BRIEF DESCRIPTION OF THE DRAWINGS
BRIEF DESCRIPTION OF THE DRAWINGS
[0006] In the appended drawings:
[0007] Figure 1 is a schematic flow sheet of a crushing and blending plant, according to a preferred embodiment of the present invention;
[0008] Figure 2 is a front isometric view of the crushing and blending plant, according to a preferred embodiment of the present invention;
[0009] Figure 3 is a rear isometric view of a crushing and blending plant shown in Figure 2;
[0010] Figure 4 is a rear elevation view of a crushing and blending plant shown in Figure 2;
[0011] Figure 5 is a front elevation view of a crushing and blending plant shown in Figure 2;
[0012] Figure 6 is a top plan view of a crushing and blending plant shown in Figure 2;
[0013] Figure 7 is a side view of a primary crusher platform forming part of the crushing and blending plant shown in Figure 2;
[0014] Figure 8 is a side view of the crusher platform shown in Figure 7;
[0015] Figure 9 is a front view of a blending station, according to a preferred embodiment of the present invention;
[0016] Figure 10 is a top view of the blending station shown in Figure 9;
[0017] Figure 11 is an isometric view of the blending station shown in Figure 9;
[0018] Figure 12 is a isometric view of a secondary crusher, according to a preferred embodiment of the present invention;
[0019] Figure 13A is side view of a screen, according to a preferred embodiment of the present invention;
[0020] Figure 13B is section view taken at line A-A of the screen shown in Figure 13A;
[0021] Figures 14A and 14B are respectively side and top views of a small blender, according to a preferred embodiment of the present invention;
[0022] Figures 15A and 15B are respectively side and top views of a small blender, according to a preferred embodiment of the present invention;
[0023] Figure 16 is an isometric view of a flexible feed mechanism with a barrel drum, according to a preferred embodiment of the present invention; and [0024] Figure 17 is an isometric view of a flexible feed mechanism adapted to receive a pail, according to a preferred embodiment of the present invention.
DESCRIPTION OF ILLUSTRATIVE EMBODIMENTS
DESCRIPTION OF ILLUSTRATIVE EMBODIMENTS
[0025] The present invention is illustrated in further detail by the following non-limiting example.
[0026] Figure 1 is a schematic of a crushing and blending plant flow sheet.
The crushing and blending plant I consists of a high level drum dumper 2, an eight by ten feet DenverTM primary jaw crusher 3, a secondary RocklabTM small Boyd TM jaw crusher 4, a KasonTM double deck vibrating screen 5, a SwecoTM single deck vibrating screen 6, a variable speed primary conveyor belt 7 and a variable speed secondary conveyor belt 8, a small VriecoTM blender (120 liter working volume) 9 and a large VriecoTM
blender (500 liter working volume) 10. Material flow 20, dust extraction system 21, compressed air system 22 and emergency stops 23 are also shown. The different elements are shown in more details Figures 2 to 15.
The crushing and blending plant I consists of a high level drum dumper 2, an eight by ten feet DenverTM primary jaw crusher 3, a secondary RocklabTM small Boyd TM jaw crusher 4, a KasonTM double deck vibrating screen 5, a SwecoTM single deck vibrating screen 6, a variable speed primary conveyor belt 7 and a variable speed secondary conveyor belt 8, a small VriecoTM blender (120 liter working volume) 9 and a large VriecoTM
blender (500 liter working volume) 10. Material flow 20, dust extraction system 21, compressed air system 22 and emergency stops 23 are also shown. The different elements are shown in more details Figures 2 to 15.
[0027] In operation, the crushing and blending plant I has a throughput capacity of 150kg/hr (ore dependent). Feed material is fed via the flexible feed mechanism 14 (see Figure 17) or a forklift into a primary 8x10 DenverTM jaw crusher 3 in open circuit and crushed to approximately 100% -12mm. The crushed material is then conveyed on the primary conveyor belt 7 to the secondary RocklabTM Boyd TM Jaw Crusher 4 in closed circuit with a Kason double deck vibrating screen 5. Screen oversize at +1.7mm and +4.75mm is transferred back to the primary conveyor 7 via a pair of vibrating feeders 8.
The KasonTM
screen 5 will be located above the secondary jaw crusher 4 to remove -1.7mm material ahead of secondary crushing. This will prevent over production of fines and increase the throughput of the secondary crusher 4 - the limiting factor in the system.
The KasonTM
screen 5 will be located above the secondary jaw crusher 4 to remove -1.7mm material ahead of secondary crushing. This will prevent over production of fines and increase the throughput of the secondary crusher 4 - the limiting factor in the system.
[0028] Screen undersize (100% passing 1.7mm) will report to the final product bin 11- a 44 gallon drum. Once this drum is filled, the feed to the primary jaw crusher 3 will be stopped and the contents of the drum 11 transferred to one of two VriecoTM
NautaTM conical mixers, either a small Vrieco blender 9 or a large VriecoTM blender 10 with a capacity of up to 750kg (equivalent to one MPP bulk sample). Discharge from the VriecoTM
blender will fall into a spinning riffler 12 on load cells 13 to produce the desired charge mass.
NautaTM conical mixers, either a small Vrieco blender 9 or a large VriecoTM blender 10 with a capacity of up to 750kg (equivalent to one MPP bulk sample). Discharge from the VriecoTM
blender will fall into a spinning riffler 12 on load cells 13 to produce the desired charge mass.
[0029] Figures 16 and 17 are views of a flexible feed mechanism 14. The feed mechanism needs to be flexible in order to accommodate drill core in 10 liter pails 15 and run of mine or similar type material in 44 gallon drums 16. When feeding 10 liter pails with flexible feed mechanism 14, such as an L.K. GoodwinTM High level Drum Dumper, a fitted 5 gallon pail adapter 18 will be used to eliminate manual material handling.
When feeding bulk samples from 44 gallon drums 16 the above feeding system may be used. If metered control of feed is required, a forklift fitted with a drum handler will elevate the drum to the feed hopper or high level drum dumper 2 and material can be raked in by the operator.
When feeding bulk samples from 44 gallon drums 16 the above feeding system may be used. If metered control of feed is required, a forklift fitted with a drum handler will elevate the drum to the feed hopper or high level drum dumper 2 and material can be raked in by the operator.
[0030] Although the present invention has been described hereinabove by way of specific embodiments thereof, it can be modified, without departing from the spirit and nature of the subject invention.
Claims (20)
1. A crushing apparatus for crushing a material comprising:
a first crusher for crushing the material into a first output;
a first conveyor for transporting the first output;
a first screen for separating the first output conveyed by the first conveyor into a first screened material and a second screened material;
a second crusher for crushing the second screened material into a second output;
a second conveyor for transporting the second output and the first screened material that are respectively received from the second crusher and the first screen;
and a second screen for separating the second output and the first screen material conveyed by the second conveyor into a product material and a third screened material;
wherein the third screened material is received by the first conveyor.
a first crusher for crushing the material into a first output;
a first conveyor for transporting the first output;
a first screen for separating the first output conveyed by the first conveyor into a first screened material and a second screened material;
a second crusher for crushing the second screened material into a second output;
a second conveyor for transporting the second output and the first screened material that are respectively received from the second crusher and the first screen;
and a second screen for separating the second output and the first screen material conveyed by the second conveyor into a product material and a third screened material;
wherein the third screened material is received by the first conveyor.
2. A method for crushing a material comprising:
crushing the material with a first crusher into a first output;
conveying the first output of the first crusher to a first screen;
separating the first output at the first screen into a first screened material and a second screened material;
crushing the second screened material with a second crusher into a second output;
conveying the second output and the first screened material towards a second screen;
separating the second output and the first screened material at the second screen into a product material and a third screened material; and conveying the third screened material towards the first screen.
crushing the material with a first crusher into a first output;
conveying the first output of the first crusher to a first screen;
separating the first output at the first screen into a first screened material and a second screened material;
crushing the second screened material with a second crusher into a second output;
conveying the second output and the first screened material towards a second screen;
separating the second output and the first screened material at the second screen into a product material and a third screened material; and conveying the third screened material towards the first screen.
3. A mixing apparatus for mixing a material comprising:
a mixer for mixing the material into a mixed output; and a riffler for riffling the mixed output into a riffled output.
a mixer for mixing the material into a mixed output; and a riffler for riffling the mixed output into a riffled output.
4. A method for mixing a material comprising:
mixing the material in a mixer into a mixed output;
riffling the mixed output with a riffler into riffled output.
mixing the material in a mixer into a mixed output;
riffling the mixed output with a riffler into riffled output.
5. A crushing and mixing apparatus comprising:
a first crusher for crushing the material into a first output;
a first conveyor for transporting the first output;
a first screen for separating the first output conveyed by the first conveyor into a first screened material and a second screened material;
a second crusher for crushing the second screened material into a second output;
a second conveyor for transporting the second output and the first screened material that are respectively received from the second crusher and the first screen;
and a second screen for separating the second output and the first screen material conveyed by the second conveyor into a product material and a third screened material;
a mixer for mixing the product material into a mixed output; and a riffler for riffling the mixed output into a riffled output;
wherein the third screened material is received by the first conveyor.
a first crusher for crushing the material into a first output;
a first conveyor for transporting the first output;
a first screen for separating the first output conveyed by the first conveyor into a first screened material and a second screened material;
a second crusher for crushing the second screened material into a second output;
a second conveyor for transporting the second output and the first screened material that are respectively received from the second crusher and the first screen;
and a second screen for separating the second output and the first screen material conveyed by the second conveyor into a product material and a third screened material;
a mixer for mixing the product material into a mixed output; and a riffler for riffling the mixed output into a riffled output;
wherein the third screened material is received by the first conveyor.
6. The crushing apparatus according to claim 1, wherein the conveyors are variable speed.
7. The crushing apparatus according to claim 1, wherein the first crusher is a jaw crusher.
8. The crushing apparatus according to claim 1, wherein the second crusher is a jaw crusher.
9. The crushing apparatus according to claim 1, wherein the first screen is a double deck vibrating screen.
10. The crushing apparatus according to claim 1, wherein the second screen is a single deck vibrating screen.
11. The crushing apparatus according to claim 1, wherein the product material is crushed to a relative standard deviation of less than 5%.
12. The crushing method according to claim 2, wherein the conveyors are variable speed.
13. The crushing method according to claim 2, wherein the first crusher is a jaw crusher.
14. The crushing method according to claim 2, wherein the second crusher is a jaw crusher.
15. The crushing method according to claim 2, wherein the first screen is a double deck vibrating screen.
16. The crushing method according to claim 2, wherein the second screen is a single deck vibrating screen.
17. The crushing method according to claim 2, wherein the product material is crushed to a relative standard deviation of less than 5%.
18. The crushing and mixing apparatus according to claim 5, further comprising a second mixer for mixing the product material into a second mixed output and at second riffler for riffling the second mixed output into a second riffled output.
19. A mixing apparatus according to claim 3, wherein the riffler is spinning riffler.
20. The crushing and mixing apparatus according to claim 5, wherein the riffler is a spinning riffler.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2702597 CA2702597A1 (en) | 2010-05-04 | 2010-05-04 | Crushing and blending system and method |
| CA 2739079 CA2739079A1 (en) | 2010-05-04 | 2011-05-04 | Crushing and blending system and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2702597 CA2702597A1 (en) | 2010-05-04 | 2010-05-04 | Crushing and blending system and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2702597A1 true CA2702597A1 (en) | 2011-11-04 |
Family
ID=44900828
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2702597 Abandoned CA2702597A1 (en) | 2010-05-04 | 2010-05-04 | Crushing and blending system and method |
| CA 2739079 Abandoned CA2739079A1 (en) | 2010-05-04 | 2011-05-04 | Crushing and blending system and method |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2739079 Abandoned CA2739079A1 (en) | 2010-05-04 | 2011-05-04 | Crushing and blending system and method |
Country Status (1)
| Country | Link |
|---|---|
| CA (2) | CA2702597A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014191063A1 (en) * | 2013-05-25 | 2014-12-04 | Khd Humboldt Wedag Gmbh | Closed-circuit crushing mill |
| CN111992319A (en) * | 2020-08-07 | 2020-11-27 | 陕西冶金设计研究院有限公司 | Basalt comprehensive utilization system and process |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107617490B (en) * | 2017-10-26 | 2019-04-23 | 许五妮 | It is a kind of to cut medicine device for the recyclable of Chinese medicine pre-treatment |
-
2010
- 2010-05-04 CA CA 2702597 patent/CA2702597A1/en not_active Abandoned
-
2011
- 2011-05-04 CA CA 2739079 patent/CA2739079A1/en not_active Abandoned
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014191063A1 (en) * | 2013-05-25 | 2014-12-04 | Khd Humboldt Wedag Gmbh | Closed-circuit crushing mill |
| CN105377435A (en) * | 2013-05-25 | 2016-03-02 | Khd洪保德韦达克有限公司 | Closed-circuit crushing mill |
| EP3130403A1 (en) * | 2013-05-25 | 2017-02-15 | KHD Humboldt Wedag GmbH | Closed-curcuit crushing mill |
| EP3130402A1 (en) * | 2013-05-25 | 2017-02-15 | KHD Humboldt Wedag GmbH | Closed-curcuit crushing mill |
| CN111992319A (en) * | 2020-08-07 | 2020-11-27 | 陕西冶金设计研究院有限公司 | Basalt comprehensive utilization system and process |
Also Published As
| Publication number | Publication date |
|---|---|
| CA2739079A1 (en) | 2011-11-04 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Dead |
Effective date: 20130506 |