Alternative fuel temporary storage bin
By designing alternative fuel buffer bins, including storage bins, discharge bins and conveying belts, and setting up multi-stage crushers in them, the problem that existing equipment cannot effectively store and supply alternative fuels is solved, and high efficiency of cement kiln systems is achieved Fuel supply.
Patent Information
- Application Number
- CN202420191109.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-25
- Publication Date
- 2025-02-11
- Estimated Expiration
- 2034-01-25
AI Technical Summary
Existing cement clinker production equipment cannot provide sufficient storage space for alternative fuels, resulting in the inability to meet the production needs of alternative fuels.
An alternative fuel buffer bin was designed, including a storage bin, a discharge bin and a conveying belt connecting both. A first crusher was installed in the storage bin and a second crusher was installed in the discharge bin. The material was transferred after preliminary crushing. The belt moves to the discharge silo and is further crushed into particles suitable for the cement kiln fuel in the discharge silo, and finally enters the cement kiln system through the discharge port.
It realizes the provision of sufficient storage space for alternative fuels, and through the design of multi-stage crushing and conveying belts, ensuring that materials can be supplied to the cement kiln system in a timely and efficient manner to meet their fuel needs.
Smart Images
Figure CN222453872U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of fuel storage, and in particular to an alternative fuel cache bin. Background Art
[0002] The production of cement clinker requires a large amount of coal resources, which greatly consumes the country's capacity resources. Therefore, alternative fuels have come into being. However, due to the low calorific value of alternative fuels, when using alternative fuels as fuel for cement clinker production, a huge amount of alternative fuels is required.
[0003] The current cement clinker production equipment is designed to use coal as fuel. Therefore, the current production equipment of the cement kiln system cannot provide sufficient storage space for alternative fuels, and therefore cannot meet the production needs of alternative fuels. Utility Model Content
[0004] The utility model aims to provide an alternative fuel cache bin, which can provide sufficient storage space for alternative fuels and supply materials to cement clinker production equipment.
[0005] In order to achieve the above-mentioned purpose, the utility model provides an alternative fuel cache bin, which includes a storage bin, a feed bin and a conveyor belt connecting the storage bin and the feed bin, a first crusher is arranged in the storage bin, the first crusher is located above the conveyor belt, the conveyor belt is arranged to be inclined upward, the entrance of the feed bin is located below the conveyor belt, and the material moves along the conveyor belt to the feed bin;
[0006] A second crusher is arranged in the feed bin, and the particle size obtained by the second crusher is smaller than the particle size obtained by the first crusher. A first feed port is arranged at the lower part of the feed bin, and the material enters the cement kiln system through the first feed port via the transportation equipment.
[0007] Preferably, the first pulverizer comprises a feed bin, a crushing bin and a feeder connecting the feed bin and the crushing bin, the material in the storage bin is fed into the feed bin by a loader, and the material falls into the crushing bin below through the feeder.
[0008] Preferably, the feeder comprises a first spiral reamer and a feeder pipe located at an end of the first spiral reamer, and the feeder pipe is connected to the crushing bin.
[0009] Preferably, two second spiral reamers parallel to each other are arranged in the crushing bin, a second discharge port is arranged below the second spiral reamers, and the second discharge port is located above the conveyor belt.
[0010] Preferably, the lower material bin further comprises an upper bin and a lower bin sequentially connected from top to bottom, the second crusher is located between the upper bin and the lower bin, and the first lower material port is located at the bottom of the lower material bin.
[0011] Preferably, the second pulverizer comprises two third spiral reamers arranged in parallel.
[0012] Preferably, the first discharge opening is as wide as the lower bin.
[0013] Preferably, a first housing is disposed above the conveyor belt, and the first housing and the conveyor belt form a closed space, and the material moves in the closed space.
[0014] Preferably, a second roof is arranged above the upper warehouse, and the upper end of the first roof is connected to the second roof.
[0015] Preferably, the lower end of the first housing is communicated with the storage bin.
[0016] According to the above technical scheme, the materials stored in the storage bin of the utility model are firstly crushed by the first crusher, and these preliminarily crushed materials fall into the conveyor belt below, and under the action of the conveyor belt, they move obliquely upward to the upper lower bin, and in the lower bin, they are crushed by the second crusher to become particles suitable for cement kiln fuel. These particles finally enter the cement kiln system through the first discharge port and are used as fuel by the cement kiln system.
[0017] Other features and advantages of the present invention will be described in detail in the subsequent specific implementation section. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present invention, but do not constitute a limitation to the present invention. In the accompanying drawings:
[0019] Figure 1 It is a schematic diagram of an alternative fuel cache;
[0020] Figure 2 is a schematic diagram of a first pulverizer;
[0021] Figure 3 It is a main view of a lower silo;
[0022] Figure 4 This is a left view of a lower silo.
[0023] Description of Reference Numerals
[0024] 1 Storage bin 2 Unloading bin
[0025] 3First crusher 4Conveyor belt
[0026] 5First feeding port 31 feeding bin
[0027] 32 crushing chamber 331 first spiral reamer
[0028] 332 feeding pipe 34 second feeding port
[0029] 35 Second spiral reamer 21 Upper bin
[0030] 22 Lower warehouse 6 first building
[0031] 7 Second House DETAILED DESCRIPTION
[0032] The specific implementation of the present invention is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the present invention, and is not used to limit the present invention.
[0033] In the present utility model, unless otherwise stated, the directional words contained in the terms such as "inside, lower part, below, parallel, above, between. Bottom, upper end, lower end" merely represent the orientation of the term in normal use, or are common names understood by those skilled in the art, and should not be regarded as limitations on the term.
[0034] See also Figure 1-4 An alternative fuel cache bin, the alternative fuel cache bin comprises a storage bin 1, a feed bin 2 and a conveyor belt 4 connecting the storage bin 1 and the feed bin 2, a first crusher 3 is arranged in the storage bin 1, the first crusher 3 is located above the conveyor belt 4, the conveyor belt 4 is arranged to be inclined upward, the entrance of the feed bin 2 is located below the conveyor belt 4, and the material moves to the feed bin 2 along the conveyor belt 4;
[0035] A second pulverizer is arranged in the feed bin 2. The particle size of particles obtained by the second pulverizer is smaller than that of particles obtained by the first pulverizer 3. A first feed port 5 is arranged at the lower part of the feed bin 2. Materials enter the cement kiln system through the first feed port 5 via the transportation equipment.
[0036] Through the implementation of the above technical solution, the materials stored in the storage bin 1 are firstly crushed by the first crusher 3, and the crushed materials fall into the conveyor belt 4 below, and under the action of the conveyor belt 4, they move obliquely upward to the upper lower bin 2, and in the lower bin 2, they are crushed by the second crusher to become particles suitable for cement kiln fuel. These particles finally enter the cement kiln system through the first discharge port 5 and are used as fuel by the cement kiln system.
[0037] The alternative fuel cache bin also includes a control system, which adjusts the discharge amount of the first discharge port 5 according to the working conditions of the cement kiln system so that the discharge amount can meet the working requirements of the cement kiln system.
[0038] During the production process, a large amount of alternative fuels are stored in the storage bin 1. These alternative fuels will be placed on the loader by the staff and lifted to the first crusher 3 by the loader. The materials crushed by the first crusher 3 will be transported to the lower bin 2 via the conveyor belt 4. Initially, the amount of material output by the first crusher 3 will be greater than the demand of the cement kiln system. Therefore, a part of the material will be stored in the lower bin 2 so that when the demand of the cement kiln system changes, the lower bin 2 can meet the demand of the cement kiln in time; when the material stored in the lower bin 2 reaches a certain amount, the material output by the first crusher 3 should be equivalent to the actual demand of the cement kiln, so that the lower bin 2 always maintains a certain amount of material as a buffer.
[0039] Specifically, the control system adjusts the discharge amount of the first discharge port 5 according to the cement kiln's demand for fuel, so as to be able to respond to the demand of the cement kiln in a timely manner; a plurality of buffer volume sensors are arranged in the discharge bin 2, and these buffer volume sensors include a lower limit sensor and an upper limit sensor, and both the lower limit sensor and the upper limit sensor can be set as photoelectric sensors.
[0040] First, the first crusher 3 is turned on, and the first crusher 3 outputs material to the lower silo 2. Then, the lower silo 2 outputs material to the cement kiln system, wherein the discharge amount of the first crusher 3 is greater than the discharge amount of the lower silo 2, and the material in the lower silo 2 begins to accumulate until the material height reaches the upper limit sensor. As the height of the material accumulation increases, the detection light of the upper limit sensor is blocked, and the upper limit sensor sends an action signal. The control system controls the first crusher 3 to slow down the discharge speed or stop the first crusher 3 from discharging material, so that the material in the lower silo 2 will not continue to increase.
[0041] As the material discharge amount of the lower bin 2 is always greater than the material discharge amount of the first pulverizer 3, the height of the material accumulated in the lower bin 2 continues to decrease. When the material in the lower bin 2 is insufficient, the material amount will be lower than the lower limit sensor, and the detection light of the photoelectric sensor that was originally blocked can be effectively emitted, so that the detection light of the photoelectric sensor is no longer blocked. When the photoelectric sensor is activated, the control system controls the first pulverizer 3 to discharge materials more quickly to replenish the material in the lower bin 2; then, the material in the lower bin 2 gradually increases until the material in the lower bin 2 has accumulated to the upper limit position, the material will block the detection light of the photoelectric sensor, so that the upper limit sensor is activated, and the control system controls the first pulverizer 3 to slow down the discharge speed or stop the discharge to reduce the material entering the lower bin 2. Through the implementation of these solutions, a certain amount of material is always maintained in the lower bin 2, so as to meet the changes in the demand for fuel of the cement kiln system in a timely manner.
[0042] In this embodiment, preferably, the first crusher 3 includes a feed bin 31, a crushing bin 32 and a feeder connecting the feed bin 31 and the crushing bin 32, and the material in the storage bin 1 is fed into the feed bin 31 by a loader, and the material falls into the crushing bin 32 below through the feeder.
[0043] The alternative fuel in the feed bin 31 enters the crushing bin 32 through the unloader, is crushed in the crushing bin 32 , and falls onto the conveyor belt 4 after being crushed.
[0044] The feed bin 31 can cache alternative fuels. Through the caching function of the feed bin 31, on the one hand, it can meet the supply of the lower bin 2 in a timely manner, and on the other hand, it also improves the work efficiency of the staff and avoids the situation where the staff needs to continuously add alternative fuels to the feed bin 31.
[0045] In this embodiment, preferably, the feeder includes a first spiral reamer 331 and a feeder pipe 332 located at the end of the first spiral reamer 331 , and the feeder pipe 332 is connected to the crushing bin 32 .
[0046] One or two first spiral reamer 331 can be provided. When one first spiral reamer 331 is provided, the first spiral reamer 331 can push the alternative fuel in the feed bin 31 to the discharge pipe 332 at the end; when two first spiral reamers 331 are provided, the two first spiral reamers 331 can realize the crushing effect on the alternative fuel, and the crushed material is gradually pushed to the discharge pipe 332 under the action of the spiral blades of the first spiral reamer 331, at this time, the material particles falling into the crushing bin 32 through the discharge pipe 332 are smaller, and the crushing efficiency of the crushing bin 32 is higher.
[0047] Preferably, when the material in the lower hopper 2 is insufficient, the rotation speed of the first spiral reamer 331 can be increased so that it can transfer the material to the crushing bin 32 faster; when the material in the lower hopper 2 has reached or exceeded the upper limit sensor, the rotation speed of the first spiral reamer 331 can be reduced or the rotation of the first spiral reamer 331 can be stopped.
[0048] Preferably, a windproof valve is also provided at the upper end of the discharge pipe 332. By rotating the windproof valve, on the one hand, the material delivered by the first spiral reamer 331 can be transferred to the discharge pipe 332 below. On the other hand, the airflow in the discharge pipe 332 can be broken up and reflected to prevent the airflow in the discharge pipe 332 from flowing upward and blowing away the material delivered by the first spiral reamer 331.
[0049] In this embodiment, preferably, two second spiral reamers 35 parallel to each other are arranged in the crushing bin 32 , a second discharge port 34 is arranged below the second spiral reamers 35 , and the second discharge port 34 is located above the conveyor belt 4 .
[0050] Two second spiral reamers 35 parallel to each other crush the materials falling into the crushing bin 32 , and the crushed materials fall onto the conveyor belt 4 through the second discharge port 34 .
[0051] By properly setting the pitch and rotation speed of the second spiral reamer 35, the particle size of the material falling on the conveyor belt 4 can meet the conveying requirements of the conveyor belt 4, that is, the particle size of the particles is large enough, and the material will not slide down during the upward movement of the conveyor belt 4.
[0052] Preferably, when the control system increases the rotation speed of the first spiral reamer 331 , the rotation speed of the second spiral reamer 35 is also increased at the same time, so that the material can fall into the conveyor belt 4 below more quickly and the material in the lower silo 2 can be replenished in time.
[0053] In this embodiment, preferably, the lower bin 2 further includes an upper bin 21 and a lower bin 22 sequentially connected from top to bottom, the second crusher is located between the upper bin 21 and the lower bin 22 , and the first discharge port 5 is located at the bottom of the lower bin 2 .
[0054] The buffer amount sensor is arranged in the upper bin 21, an upper limit sensor is arranged at a position of the upper bin 21 close to the conveyor belt 4, and a lower limit sensor is arranged near the second crusher. Under the monitoring of the upper limit sensor and the lower limit sensor, effective feeding management of the alternative fuel cache bin is realized in cooperation with the control system.
[0055] The upper bin 21 can buffer the materials. A second crusher is provided at the bottom of the upper bin 21 . The materials are crushed into smaller particles by the second crusher to meet the production requirements of the cement kiln. The crushed materials fall into the lower bin 22 and flow out from the first discharge port 5 .
[0056] In order to meet the transmission requirements, since the particle size of the particles after being crushed by the first crusher is still large, they need to be further crushed by the second crusher. The particle size of the particles after being crushed by the second crusher is smaller than the particle size of the particles after being crushed by the first crusher, so that the particles crushed by the second crusher can meet the needs of the cement kiln system.
[0057] In this embodiment, preferably, the second pulverizer comprises two third spiral reamers arranged in parallel.
[0058] The pitch of the third spiral reamer can be set to be smaller so that the second pulverizer can achieve a better pulverizing effect.
[0059] Since the pitch and rotation speed of the spiral reamer can affect the crushing effect, when it is necessary to obtain smaller crushed particles, it can be achieved by reducing the pitch or increasing the rotation speed. Preferably, the present application adjusts the crushing effect of the spiral reamer by adjusting the pitch, so that the control system can directly adjust the rotation speed of the spiral reamer when adjusting the discharge amount. Avoid excessive rotation speed, which will result in too small particles on the conveyor belt 4, affecting the transmission effect of the conveyor belt 4.
[0060] In this embodiment, preferably, the first discharge opening 5 is as wide as the lower bin 22 .
[0061] The second crusher is composed of two third spiral reamers arranged in parallel, so the position between the two third spiral reamers is the unloading position of the second crusher, and the material falls into the lower bin 22 after being crushed by the second crusher. The first unloading opening 5 is set to be the same width as the lower bin 22, so that the material can still be evenly distributed along the length direction of the third spiral reamers, avoiding the concentration effect of the first unloading opening 5 on the material.
[0062] In this embodiment, preferably, a first housing 6 is disposed above the conveyor belt 4, and the first housing 6 and the conveyor belt 4 form a closed space, and the material moves in the closed space.
[0063] The closed space prevents materials from flying around during transportation on the conveyor belt 4, thus protecting the environment.
[0064] In this embodiment, preferably, a second housing 7 is provided above the upper warehouse 21 , and the upper end of the first housing 6 is communicated with the second housing 7 .
[0065] Under the action of the second housing 7 , the upper bin 21 is sealed, thereby preventing the materials in the upper bin 21 from flying around.
[0066] The upper end of the first housing 6 is connected to the second housing 7, so that the alternative fuel buffer is sealed at the position where the conveyor belt 4 is connected to the upper bin 21, thereby preventing the material from being dispersed into the external space through this position.
[0067] In this embodiment, preferably, the lower end of the first housing 6 is connected to the storage bin 1 .
[0068] The lower end of the first housing 6 is in communication with the storage bin 1 , so that the alternative fuel buffer bin is sealed at the location where the conveyor belt 4 is connected to the storage bin 1 , thereby preventing the material from being dispersed to the external space through this location.
[0069] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the specific details in the above embodiments. Within the technical concept of the present invention, the technical solution of the present invention can be subjected to a variety of simple modifications, and these simple modifications all belong to the protection scope of the present invention.
[0070] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present utility model will not further describe various possible combinations.
[0071] In addition, various embodiments of the present invention may be arbitrarily combined, and as long as they do not violate the concept of the present invention, they should also be regarded as the contents disclosed by the present invention.
Claims
1. An alternative fuel cache, characterized in that: The alternative fuel cache comprises a storage bin (1), a feed bin (2) and a conveyor belt (4) connecting the storage bin (1) and the feed bin (2); a first crusher (3) is arranged in the storage bin (1); the first crusher (3) is located above the conveyor belt (4); the conveyor belt (4) is arranged to be inclined upward; the entrance of the feed bin (2) is located below the conveyor belt (4); and the material moves along the conveyor belt (4) to the feed bin (2); A second pulverizer is arranged in the feed bin (2), and the particle size of particles obtained by the second pulverizer is smaller than the particle size of particles obtained by the first pulverizer (3). A first feed port (5) is arranged at the lower part of the feed bin (2), and the material enters the cement kiln system through the first feed port (5) via the transportation equipment.
2. The alternative fuel cache according to claim 1, characterized in that: The first pulverizer (3) comprises a feed bin (31), a pulverizing bin (32) and a feeder connecting the feed bin (31) and the pulverizing bin (32); the material in the storage bin (1) is fed into the feed bin (31) by a loader, and the material falls into the pulverizing bin (32) below through the feeder.
3. The alternative fuel cache according to claim 2, characterized in that: The feeder comprises a first spiral reamer (331) and a feeder pipe (332) located at the end of the first spiral reamer (331), and the feeder pipe (332) is connected to the crushing bin (32).
4. The alternative fuel cache according to claim 2, characterized in that: Two second spiral reamers (35) parallel to each other are arranged in the crushing bin (32), a second discharge port (34) is arranged below the second spiral reamers (35), and the second discharge port (34) is located above the conveyor belt (4).
5. The alternative fuel cache according to claim 1, characterized in that: The lower material bin (2) further comprises an upper bin (21) and a lower bin (22) connected in sequence from top to bottom, the second crusher is located between the upper bin (21) and the lower bin (22), and the first lower material port (5) is located at the bottom of the lower material bin (2).
6. The alternative fuel cache according to claim 5, characterized in that: The second pulverizer includes two third spiral reamers arranged in parallel.
7. The alternative fuel cache according to claim 5, characterized in that: The first discharge opening (5) is the same width as the lower bin (22).
8. The alternative fuel cache according to claim 5, characterized in that: A first housing (6) is arranged above the conveyor belt (4); the first housing (6) and the conveyor belt (4) form a closed space, and the material moves in the closed space.
9. The alternative fuel cache according to claim 8, characterized in that: A second roof (7) is arranged above the upper warehouse (21), and the upper end of the first roof (6) is connected to the second roof (7).
10. The alternative fuel cache according to claim 9, characterized in that: The lower end of the first housing (6) is connected to the storage bin (1).