A gypsum homogenization device

Abstract

This invention provides a gypsum homogenization device, comprising: multiple mixing chambers arranged in parallel, used to receive mixed gypsum powder and release it for the next mixing cycle; a mixer used to uniformly mix the gypsum powder; and a lower conveying system that sequentially connects the outlets of the multiple mixing chambers to the inlet of the mixer, so that the gypsum powder exiting the mixing chambers falls onto the lower conveying system and is then transported to the mixer. During the gypsum homogenization process, the device performs several cycles of mixing and homogenization to ensure that different portions of the gypsum powder are mixed in the mixer, or in the horizontal conveyor, or in the vertical bucket elevator, or in the mixing chambers, thereby minimizing the number of mixing cycles and improving the homogenization efficiency of the gypsum.

Description

Technical Field

[0001] This invention belongs to the field of gypsum homogenization technology, and specifically relates to a gypsum homogenization device. Background Technology

[0002] In the construction industry, compared to gypsum production, cement production generates significantly higher carbon emissions per ton of material. This is solely due to the fact that the calcination temperature of cement clinker (1450℃) is over 1000 degrees Celsius higher than that of gypsum (not exceeding 200℃). Furthermore, gypsum byproducts can be reused by enterprises (such as power plants and chemical plants). Additionally, gypsum products do not require prolonged curing after application. The lightweight and other advantages of gypsum products indicate that their usage will continue to increase. Scientific and rational aging and homogenization treatment after gypsum calcination greatly contributes to improving the batch-to-batch quality stability of gypsum.

[0003] During the production of building gypsum powder, the calcined powder contains a certain amount of over-burned Type III anhydrous gypsum, especially powder produced through rapid calcination. If this type of anhydrous gypsum is used directly, it will absorb excessive water, leading to unstable product quality, cracking, and peeling after use, which is detrimental to the quality and aesthetics of the building. Type III anhydrous gypsum can quickly absorb water and transform into hemihydrate gypsum in steam or humid air. Therefore, aging and homogenizing the building gypsum powder allows the Type III anhydrous gypsum to transform into hemihydrate gypsum before use, ensuring the stability of the gypsum production quality.

[0004] Therefore, there is a need to provide an improved technical solution that addresses the shortcomings of the existing technology. Summary of the Invention

[0005] The purpose of this invention is to provide a gypsum homogenization device to at least solve the problems of unstable quality of gypsum due to uneven homogenization.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A gypsum homogenization device, the gypsum homogenization device comprising:

[0008] Multiple mixing chambers are arranged side by side. The mixing chambers are used to receive the mixed gypsum powder and release the gypsum powder for the next cycle of mixing.

[0009] A mixer for uniformly mixing gypsum powder;

[0010] The lower conveying system connects the outlets of multiple mixing chambers to the inlet of the mixer in sequence, so that the gypsum powder coming out of the mixing chambers falls onto the lower conveying system and is then transported to the mixer by the lower conveying system.

[0011] Preferably, the gypsum homogenization equipment described above further includes a bucket elevator system connected to the outlet of the mixer; the bucket elevator system is used to lift the gypsum powder to the same height as the inlet of the mixing chamber, so that the gypsum powder can enter the mixing chamber.

[0012] The mixing chamber is equipped with a vibrator that vibrates periodically to mix the gypsum powder inside.

[0013] Preferably, in the gypsum homogenization equipment described above, an upper conveying system is provided between the upper outlet of the bucket elevator system and the top inlet of the mixing bin. The upper conveying system is used to convey the gypsum powder lifted by the bucket elevator system to each mixing bin.

[0014] In the gypsum homogenization equipment described above, preferably, the mixer is located at the downstream end of the lower conveying system, and a chute is directly provided between the lower conveying system and the mixer, the chute being used to transfer materials from the lower conveying system to the mixer.

[0015] Preferably, in the gypsum homogenization equipment described above, a buffer chamber is provided between the outlet of the mixer and the inlet of the bucket elevator system, the outlet of the mixer is connected to the inlet of the buffer chamber, and the outlet of the buffer chamber is connected to the inlet of the bucket elevator system; the buffer chamber is used to temporarily store the gypsum powder discharged from the mixer and to transport the gypsum powder in the buffer chamber to the bucket elevator system.

[0016] In the gypsum homogenization equipment described above, preferably, an upper flow control valve is provided at the inlet of each of the multiple mixing chambers, the upper flow control valve being used to control the flow rate of gypsum powder entering the mixing chamber; and a lower flow control valve is provided at the outlet of each of the multiple mixing chambers, the lower flow control valve being used to control the flow rate of gypsum powder entering the mixing chamber.

[0017] In the gypsum homogenization equipment described above, preferably, the sum of the discharge flow rates of multiple upper flow control valves per unit time is greater than or equal to the mixing capacity of the mixer, and the flow rates of each upper flow control valve are different.

[0018] The sum of the discharge flow rates of multiple lower flow control valves per unit time is less than the mixing capacity of the mixer.

[0019] In the gypsum homogenization equipment described above, preferably, a metering alarm sensor is provided in the mixing chamber. The metering alarm sensor is used to measure the amount of gypsum powder in the mixing chamber. When the amount of gypsum powder in the mixing chamber reaches the set storage value, the metering alarm sensor will issue an alarm signal.

[0020] The upper flow control valve, lower flow control valve, and metering alarm sensor are all connected to the data processor. After receiving the price signal from the metering sensor, the data processor adjusts the flow rate of the upper flow control valve of the alarm mixing chamber to the minimum value and adjusts the flow rate of the upper flow control valve of the mixing chamber with the least stock to the maximum value.

[0021] In the gypsum homogenization equipment described above, preferably, a ton bag feed hopper is provided at the uppermost end of the lower conveying system. The ton bag feed hopper is used to store packaged ton bag gypsum powder and transfer the ton bag gypsum powder to the lower conveying system, and the ton bag gypsum powder is transported to the mixer by the lower conveying system.

[0022] One or more of the multiple mixing chambers are provided with a bulk feed inlet, through which bulk gypsum powder enters directly into the mixing chamber.

[0023] In the gypsum homogenization equipment described above, preferably, a discharge port is provided between the inlet and outlet of the bucket elevator system. After the gypsum powder circulates multiple times in the gypsum homogenization equipment and the test sample reaches the overall stability of gypsum performance, the gypsum powder in the gypsum homogenization equipment enters the raw material finished product silo through the discharge port to complete the homogenization process.

[0024] Beneficial effects: In the gypsum homogenization process, the equipment mixes and homogenizes gypsum powder through several cycles to ensure that different parts of the gypsum powder are mixed in the mixer, or in the horizontal conveyor, or in the vertical bucket elevator or mixing bin, thereby minimizing the number of mixing cycles and improving the homogenization efficiency of gypsum. Attached Figure Description

[0025] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. Wherein:

[0026] Figure 1 This is a schematic diagram of the gypsum homogenization equipment used in the implementation of the invention.

[0027] In the diagram: 1. Upper conveying system; 2. Upper flow control valve; 3. Mixing bin; 4. Bulk feed inlet; 5. Ton bag feed bin; 6. Bucket elevator system; 7. Chute; 8. Mixer; 9. Buffer bin; 10. Discharge outlet; 11. Lower conveying system; 12. Lower flow control valve. Detailed Implementation

[0028] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention are within the scope of protection of the present invention.

[0029] In the description of this invention, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," and "bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and do not require the invention to be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on the invention. The terms "connected" and "linked" used in this invention should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; they can refer to a direct connection or an indirect connection through intermediate components. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0030] The present invention will now be described in detail with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described herein can be combined with each other.

[0031] According to specific embodiments of the present invention, such as Figure 1 As shown, the present invention provides a gypsum homogenization device, which includes: a mixing chamber, multiple mixing chambers arranged in parallel, the mixing chambers being used to receive mixed gypsum powder and release the gypsum powder for the next cycle of mixing; a mixer, the mixer being used to mix the gypsum powder uniformly; and a lower conveying system, the lower conveying system being connected in sequence to the outlets of the multiple mixing chambers and the inlet of the mixer, so that the gypsum powder coming out of the mixing chambers falls onto the lower conveying system and is then transported by the lower conveying system to the mixer.

[0032] The gypsum homogenization equipment also includes a bucket elevator system connected to the mixer outlet. The bucket elevator system lifts the gypsum powder to the same height as the mixing chamber inlet, facilitating its entry into the mixing chamber. A vibrator is installed in the mixing chamber, periodically vibrating to mix the gypsum powder. The gypsum powder undergoes multiple cycles of mixing within the circulation system consisting of the mixer, bucket elevator, and mixing chamber, ensuring more efficient homogenization and improving the quality stability of the gypsum powder.

[0033] An upper conveying system is installed between the upper outlet of the bucket elevator system and the top inlet of the mixing bins. The upper conveying system is used to transport the gypsum powder lifted by the bucket elevator system to each mixing bin. In this embodiment, both the upper and lower conveying systems are conveyor chains, and the bucket elevator system is a bucket elevator.

[0034] The mixer is located at the downstream end of the lower conveying system. A chute is directly connected between the lower conveying system and the mixer to transfer materials from the lower conveying system to the mixer.

[0035] A buffer silo is installed between the mixer outlet and the bucket elevator system inlet. The mixer outlet connects to the buffer silo inlet, and the buffer silo outlet connects to the bucket elevator system inlet. The buffer silo is used to temporarily store the gypsum powder discharged from the mixer and to transport the gypsum powder in the buffer silo to the bucket elevator system. Because the mixer discharges a large amount of material at one time, it cannot be transferred to the bucket elevator system all at once. The buffer silo is set up to temporarily store the material discharged from the mixer and then evenly transfer it to the bucket elevator system.

[0036] Each mixing chamber is equipped with an upper flow control valve at its inlet, which is used to control the flow rate of gypsum powder entering the mixing chamber; each mixing chamber is equipped with a lower flow control valve at its outlet, which is used to control the flow rate of gypsum powder entering the mixing chamber.

[0037] The sum of the discharge flow rates of multiple upper flow control valves per unit time is greater than or equal to the mixing capacity of the mixer. This ensures that all the material discharged from the mixer at one time enters the mixing chamber, preventing gypsum powder from accumulating between the buffer chamber and the bucket elevator, thus guaranteeing the normal operation of the gypsum homogenization equipment. Conversely, the sum of the discharge flow rates of multiple lower flow control valves per unit time is less than the mixing capacity of the mixer. This causes the gypsum powder to gradually increase in the mixing chamber, leading to accumulation. The vibrator installed in the mixing chamber further homogenizes the gypsum powder through vibration.

[0038] The flow rates of each upper flow control valve are different; by utilizing the non-uniformity of the flow rates of each upper flow control valve, the gypsum powder reaches a state of disordered mixing as it falls into the mixing chamber, thereby ensuring that the gypsum powder can undergo a more efficient homogenization process.

[0039] In this embodiment, there are four mixing chambers. The mixing capacity of the mixer is set to 5000 kg, the stirring time is 2 min, and the bucket elevator completes the lifting task in 1 min. The total discharge of the upper flow control valve is set not to be less than 5000 kg / min. The set flow rates of the four upper flow control valves corresponding to the four mixing chambers are 200 kg / min, 900 kg / min, 1600 kg / min, and 2300 kg / min, respectively. The flow rate of the four lower flow control valves is set to 700 kg / min.

[0040] A metering alarm sensor is installed in the mixing chamber to measure the amount of gypsum powder in the mixing chamber. When the amount of gypsum powder in the mixing chamber reaches the set storage value, the metering alarm sensor will issue an alarm signal. The upper flow control valve, the lower flow control valve and the metering alarm sensor are all connected to the data processor. After receiving the price signal issued by the metering sensor, the data processor is used to adjust the flow rate of the upper flow control valve of the alarm mixing chamber to the minimum value, and adjust the flow rate of the upper flow control valve of the mixing chamber with the least storage to the maximum value.

[0041] This causes the mixing chamber with the largest gypsum powder content to slow down its feed rate, while the mixing chamber with the smallest gypsum powder content increases its feed rate. This not only ensures the normal operation of the gypsum homogenization equipment, but also the change in the flow rate of the upper flow control valve will redistribute the flow rate of gypsum powder entering the mixing chamber, further ensuring the disorder of gypsum powder entering the mixing chamber, which in turn ensures the uniformity of gypsum powder mixing.

[0042] The uppermost part of the lower conveying system is equipped with a ton-bag feed hopper, which stores packaged ton-bag gypsum powder and transfers it to the lower conveying system, from where it is transported to the mixer. One or more of the multiple mixing silos are equipped with bulk feed inlets, through which bulk gypsum powder directly enters the mixing silos. The combination of ton-bag feed hoppers and bulk feed inlets provides greater flexibility in the feeding method, making the gypsum homogenization equipment more widely applicable.

[0043] The bucket elevator system has a discharge port between its inlet and outlet. After the gypsum powder circulates multiple times in the gypsum homogenization equipment and the samples are tested to achieve overall stability of gypsum performance, the gypsum powder in the homogenization equipment enters the raw material finished product silo through the discharge port to complete the homogenization process. In this embodiment, when the amount of gypsum powder fed into the homogenization system reaches the equipment's cycle homogenization mass (e.g., 100 tons), the feeding of gypsum powder is stopped, and homogenization continues. After homogenization for a certain period of time, samples are taken at regular intervals on the horizontal conveyor. After the number of samplings reaches a specified number (e.g., 10 times), the overall stability of gypsum performance of different samples is tested. When the overall stability of performance meets the requirements, homogenization is considered complete, and the gypsum powder enters the raw material finished product silo through the discharge port for later use.

[0044] In operation, the gypsum homogenization equipment uses ton-bag gypsum powder. The powder is fed into the ton-bag feed hopper and falls onto the lower conveyor system through the hopper's discharge port. Bulk gypsum powder enters the mixing hopper directly through the bulk feed port and then falls onto the lower conveyor system through the mixing hopper's outlet. The lower conveyor system transports the material to a chute, from which it enters the mixer. The mixer mixes the gypsum powder for a certain period before it falls into a buffer hopper below the mixer. The outlet of the buffer hopper connects to the inlet of a bucket elevator, allowing the gypsum powder flowing into the buffer hopper to fall into the bucket elevator. The bucket elevator then lifts the gypsum powder to the upper conveyor system. The gypsum powder on the upper conveyor system passes through various upper flow control valves and enters the mixing hopper at different flow rates. Vibrators in the mixing hopper further homogenize the gypsum powder. The material in the mixing chamber falls onto the lower conveying system through the lower flow control valve, starting the next cycle. After the gypsum powder has circulated for a set number of cycles, samples are taken from the lower or upper conveying system to test the overall stability of the gypsum performance. When the overall stability of the gypsum performance meets the requirements, the gypsum homogenization is complete, and the gypsum powder enters the raw material finished product silo through the discharge port for later use.

[0045] In summary, the technical solution of the gypsum homogenization equipment provided by the present invention ensures that different parts of the gypsum powder can be mixed in the mixer, or in the horizontal conveying equipment, or in the vertical bucket elevator or in the mixing bin after several cycles of mixing and homogenization, thereby minimizing the number of gypsum powder mixing cycles and improving the homogenization efficiency of gypsum.

[0046] It is understood that the above description is merely exemplary and the embodiments of this application do not limit the scope of the application.

[0047] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention shall be within the scope of protection of the pending claims of the present invention.

Claims

1. A gypsum homogenization device, characterized in that, The gypsum homogenization equipment includes: Multiple mixing chambers are arranged side by side. The mixing chambers are used to receive the mixed gypsum powder and release the gypsum powder for the next cycle of mixing. A mixer for uniformly mixing gypsum powder; The lower conveying system connects the outlets of multiple mixing chambers to the inlet of the mixer in sequence, so that the gypsum powder coming out of the mixing chambers falls onto the lower conveying system and is then transported to the mixer by the lower conveying system; Each of the multiple mixing chambers is equipped with an upper flow control valve at its inlet, which is used to control the flow rate of gypsum powder entering the mixing chamber; each of the multiple mixing chambers is equipped with a lower flow control valve at its outlet, which is used to control the flow rate of gypsum powder entering the mixing chamber. The sum of the discharge flow rates of multiple upper flow control valves per unit time is greater than or equal to the mixing capacity of the mixer, and the flow rates of each upper flow control valve are different. The sum of the discharge flow rates of multiple lower flow control valves per unit time is less than the mixing capacity of the mixer; The mixing chamber is equipped with a metering alarm sensor, which is used to measure the amount of gypsum powder in the mixing chamber. When the amount of gypsum powder in the mixing chamber reaches the set storage value, the metering alarm sensor will issue an alarm signal. The upper flow control valve, lower flow control valve, and metering alarm sensor are all connected to the data processor. Upon receiving a price quote signal from the metering sensor, the data processor adjusts the flow rate of the upper flow control valve in the alarm mixing chamber to the minimum value, and adjusts the flow rate of the upper flow control valve in the mixing chamber with the lowest inventory to the maximum value. The gypsum homogenization equipment also includes a bucket elevator system connected to the outlet of the mixer; the bucket elevator system is used to lift the gypsum powder to the same height as the inlet of the mixing chamber, so that the gypsum powder can enter the mixing chamber. The mixing chamber is equipped with a vibrator that vibrates periodically to mix the gypsum powder in the mixing chamber; the bucket elevator system is a bucket elevator.

2. The gypsum homogenization equipment according to claim 1, characterized in that, An upper conveying system is provided between the upper outlet of the bucket elevator system and the top inlet of the mixing bin. The upper conveying system is used to transport the gypsum powder lifted by the bucket elevator system to each mixing bin.

3. The gypsum homogenization equipment according to claim 1, characterized in that, The mixer is located at the downstream end of the lower conveying system. A chute is directly connected between the lower conveying system and the mixer. The chute is used to transfer materials from the lower conveying system to the mixer.

4. The gypsum homogenization equipment according to claim 3, characterized in that, A buffer chamber is provided between the outlet of the mixer and the inlet of the bucket elevator system. The outlet of the mixer is connected to the inlet of the buffer chamber, and the outlet of the buffer chamber is connected to the inlet of the bucket elevator system. The buffer chamber is used to temporarily store the gypsum powder discharged from the mixer and to transport the gypsum powder in the buffer chamber to the bucket elevator system.

5. The gypsum homogenization equipment according to any one of claims 1-4, characterized in that, The uppermost part of the lower conveying system is equipped with a ton bag feeding hopper, which is used to store packaged ton bag gypsum powder and transfer the ton bag gypsum powder to the lower conveying system. The ton bag gypsum powder is then transported to the mixer by the lower conveying system. One or more of the multiple mixing chambers are provided with a bulk feed inlet, through which bulk gypsum powder enters directly into the mixing chamber.

6. The gypsum homogenization equipment according to claim 1, characterized in that, The bucket elevator system has a discharge port between its inlet and outlet. After the gypsum powder is circulated multiple times in the gypsum homogenization equipment and the test sample reaches the overall stability of gypsum performance, the gypsum powder in the gypsum homogenization equipment enters the raw material finished product silo through the discharge port to complete the homogenization process.

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