Air-locking feeding device and air-locking feeding system

Abstract

The utility model discloses an air-locking feeding device and an air-locking feeding system, which are characterized in that air distributors are uniformly arranged at the bottoms in any feeding chamber and any discharging chamber in a multi-point manner, and an adjusting valve is independently arranged on an air supply branch pipe connected with each air distributor; therefore, the fluidization state of the materials in each material cavity can be adjusted and controlled by automatically adjusting and controlling the opening degree of each adjusting valve, accurate material distribution according to the proportion can be achieved, and the air locking effect is reliable. Wherein each air distributor is provided with an independent adjusting valve, accurate regulation and control of the air supply flow in the material cavity can be achieved, the adjusting fineness and precision are high, the air locking performance is good, the situation that the interior of the material cavity reaches a fluidization critical state, consequently, locked air is broken down can be avoided, and it can be guaranteed that the air locking feeding device operates efficiently, stably, safely and reliably. The whole device is simple in structure and good in integration, and has the advantages of low equipment investment, high automation degree and the like.

Description

Technical Field

[0001] This utility model relates to the field of material conveying technology, and in particular to an airlock feeding device and airlock feeding system that can achieve precise proportional material distribution and reliable airlock effect. Background Technology

[0002] In industrial production, it is often necessary to feed materials and lock gas between different systems. For example: (i) In the magnetized roasting industry of refractory iron ore, the gas composition between the heating furnace and the reduction furnace is different. The gas composition in the heating furnace is oxygen-containing flue gas, while the gas composition in the reduction furnace is a reducing atmosphere containing combustible gases such as carbon monoxide and hydrogen. The high-temperature iron ore powder in the heating furnace needs to be fed into multiple reduction furnaces for reduction. It is necessary to adjust the amount of high-temperature iron powder required by each reduction furnace, and at the same time, it is necessary to prevent the gas from crossing between the heating furnace and the reduction furnace; (ii) In the shale oil refining industry, part of the shale ash in the dry distillation unit is discharged to the cooler, and part is returned to the main furnace. In the roasting process, the atmosphere in the dry distiller is combustible oil gas, the atmosphere in the cooler is air, and the atmosphere in the main furnace is oxygen-containing flue gas. The shale ash transport process must ensure gas isolation between the three systems, and also ensure that the shale ash in the dry distiller is distributed to the cooler and the main furnace according to a preset ratio. (III) In the lignite upgrading industry, a portion of the semi-coke ash from the dry distiller is discharged to the cooler, and a portion is returned to the main furnace for roasting. The atmosphere in the dry distiller is combustible oil gas, the atmosphere in the cooler is air, and the atmosphere in the main furnace is oxygen-containing flue gas. The semi-coke ash transport process must ensure gas isolation between the three systems, and also ensure that the semi-coke ash in the dry distiller is distributed to the cooler and the main furnace according to a preset ratio. Therefore, a proportional feeding and gas-locking device has emerged. Its main function is to provide materials to downstream equipment proportionally, while simultaneously achieving gas lock during material supply to prevent gas exchange between upstream and downstream equipment during material transport.

[0003] The inventors know of some material feeding and airlock devices that have poor adjustment accuracy and low reliability. Once the fluidizing gas introduced causes the material to reach the fluidization critical state, the same amount of powder will be discharged from the outlet, and the airlock is easily broken, making it difficult to achieve proportional adjustment. Utility Model Content

[0004] The purpose of this invention is to provide an airlock feeding device and system that can achieve precise proportional material distribution and reliable airlock effect, thereby solving the problems existing in the prior art.

[0005] To achieve the above objectives, this utility model provides the following solution:

[0006] This utility model provides an airlock feeding device, comprising:

[0007] The material distribution mechanism includes multiple spaced-apart material chambers. Each material chamber is equipped with a partition, the top of which is connected to the material chamber and the bottom of which is spaced from the material chamber, so as to divide the material chamber into a feeding chamber and a discharging chamber that are only connected at the bottom. Each feeding chamber has a feeding hole at the top for connecting to an upstream feeding device. Each discharging chamber has a discharging pipe with the outlet sloping downwards on the top side wall for connecting to a downstream receiving device.

[0008] The air distribution mechanism includes multiple air distributors. The air distribution mechanism is provided at the bottom of any of the feeding chambers and any of the discharging chambers, and the air distributors of the air distribution mechanism are evenly distributed at multiple points in each chamber.

[0009] The air distribution mechanism includes an air supply duct, an air supply branch duct, and a regulating valve. Each of the air distributors is connected to the air supply duct through an air supply branch duct, and each of the air supply branch ducts is equipped with a regulating valve. The air supply duct is used to connect to an external air source to supply gas to the air distribution mechanism, and the regulating valve is used to control the opening and closing of the corresponding air supply branch duct.

[0010] In some embodiments, the material distribution mechanism includes a housing, and at least one partition plate is disposed inside the housing to divide and form a plurality of spaced-apart material cavities within the housing.

[0011] In some embodiments, a partition plate is provided inside the housing to divide the housing into two symmetrically arranged material cavities.

[0012] In some embodiments, the air distributors in any one of the feed chambers and any one of the discharge chambers are evenly distributed in a circular or rectangular array.

[0013] In some embodiments, the air distributors in any one of the feed chambers and any one of the discharge chambers are evenly distributed in the rectangular array, and in any one of the rectangular arrays:

[0014] Each row of air distributors is connected to one of the air supply pipes, and the air supply pipes are arranged in a one-to-one correspondence with the rows of the rectangular array.

[0015] Alternatively, each column of air distributors is connected to a corresponding air supply pipe, and the air supply pipes are arranged in a one-to-one correspondence with the columns of the rectangular array.

[0016] In some embodiments, the airlock feeding device further includes a feeding mechanism, wherein the feeding port of any of the feeding chambers is connected to the feeding mechanism, and the feeding mechanism is used to connect to the upstream feeding equipment and divert the material to each of the feeding chambers.

[0017] In some embodiments, the feeding mechanism is a multi-port pipe or a multi-port valve.

[0018] This utility model proposes a method for airlock feeding, implemented using any one of the airlock feeding devices described above, including:

[0019] Material is fed into each of the feeding chambers, and the regulating valves corresponding to some or all of the air distributors in each of the feeding chambers are adjusted to control the fluidization state of the material in each of the feeding chambers by adjusting the air flow rate and air outlet area of ​​the air distribution mechanism, and the material inflow rate in each of the feeding chambers is adjusted by using the fluidization state of the material in the feeding chambers.

[0020] Adjusting the regulating valves corresponding to some or all of the air distributors in each discharge chamber, thereby controlling the fluidization state of the material in each discharge chamber by adjusting the air flow rate and air outlet area of ​​the air distribution mechanism, and adjusting the material outflow of each discharge chamber by using the fluidization state of the material in the discharge chamber.

[0021] Based on the operating parameters of the downstream receiving equipment connected to each discharge pipe, the regulating valves corresponding to some or all of the air distributors in each material chamber are adjusted to control the fluidization state of the material in each material chamber by adjusting the air flow rate and air outlet area of ​​the air distribution mechanism in each material chamber, until the material outflow of each discharge pipe reaches a set ratio; wherein, the operating parameters include the temperature, oxygen content and pressure of the downstream receiving equipment.

[0022] This utility model proposes an airlock feeding system, including an upstream receiving device, a downstream receiving device, and an airlock feeding device as described above. The upstream receiving device is connected to the feed hole of any of the feed chambers, and any of the discharge pipes of the airlock feeding device is connected to a downstream receiving device.

[0023] In some embodiments, the airlock feeding system is a magnetic roasting system for refractory iron ore, wherein the upstream receiving device is a heating furnace and the downstream receiving device is a reactor;

[0024] Alternatively, the airlock feeding system is a shale oil production system, wherein the upstream receiving equipment is a dry distiller, and the downstream receiving equipment includes a main furnace and a cooler;

[0025] Alternatively, the airlock feeding system is a lignite upgrading system, wherein the upstream receiving equipment is a dry distiller, and the downstream receiving equipment includes a main furnace and a cooler.

[0026] The present invention achieves the following technical advantages over the prior art:

[0027] The airlock feeding device proposed in this utility model has a reasonable structural design. By evenly arranging air distributors at multiple points at the bottom of each inlet and outlet chamber, and independently installing regulating valves on the air supply branch pipes connected to each air distributor, the fluidization state of the material in each material chamber can be controlled automatically by adjusting the opening of each regulating valve. This enables precise proportional material distribution with reliable airlock performance. Each air distributor is equipped with an independent regulating valve, allowing for precise control of the airflow within the material chamber. The high precision and accuracy of the adjustment ensure good airlock performance, preventing the material chamber from reaching a critical fluidization state that could lead to airlock breakdown. This guarantees the efficient, stable, safe, and reliable operation of the airlock feeding device. This utility model is applicable to industries such as magnetized roasting of refractory iron ore, shale oil production, and lignite upgrading, for isolating gases between two systems and proportionally regulating material distribution.

[0028] In addition, the entire device has a simple structure and good integration, which has the advantage of low equipment investment. At the same time, the regulating valve has automatic adjustment capability, which can improve the automation and intelligence of the device; and the automated operation of the equipment improves reliability.

[0029] The airlock feeding system proposed in this utility model includes the above-mentioned airlock feeding device and has all the features of the above-mentioned airlock feeding device, which will not be repeated here. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0031] Figure 1 This is a schematic diagram of the overall structure of the airlock feeding device disclosed in the embodiment of this utility model;

[0032] Figure 2 This is a schematic diagram of the longitudinal arrangement of the regulating valves disclosed in the embodiments of this utility model.

[0033] In the figure, the attached figures are labeled as follows:

[0034] 100. Airlock feeding device;

[0035] 1. Outer shell;

[0036] 2. Material separator;

[0037] 3. Material chamber 1; 31. Feed chamber 1; 32. Discharge chamber 1; 33. Discharge pipe 1; 34. Baffle 1;

[0038] 4. Material chamber two; 41. Feed chamber two; 42. Discharge chamber two; 43. Discharge pipe two; 44. Baffle two;

[0039] 5. Air distributor;

[0040] 6. Air supply duct;

[0041] 7. Air supply branch pipe;

[0042] 8. Adjusting valves

[0043] 9. Feeding mechanism. Detailed Implementation

[0044] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0045] One of the objectives of this invention is to provide an airlock feeding device that can accurately distribute materials according to a ratio and has a reliable airlock effect, thereby solving the problems existing in the prior art.

[0046] Another objective of this utility model is to provide an airlock feeding system, which includes the above-mentioned airlock feeding device, and can achieve precise proportional material distribution with reliable airlock effect.

[0047] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0048] Example 1

[0049] like Figure 1As shown, this embodiment provides a lock-air feeding device 100, which includes a material distribution mechanism, an air distribution mechanism, and an air adjustment mechanism. The material distribution mechanism includes multiple spaced-apart material chambers. Each material chamber is equipped with a partition, with the top of the partition connected to the top of the material chamber and the bottom of the partition spaced away from the material chamber, thus dividing the material chamber into a feeding chamber and a discharging chamber that are only connected at the bottom. Each feeding chamber has a feeding hole at the top for connecting to an upstream feeding device. Each discharging chamber has a downward-sloping discharge pipe on the top side wall for connecting to a downstream receiving device. The air distribution mechanism includes multiple air distributors 5. Each feeding chamber and each discharging chamber has an air distributor 5 at its bottom, and the air distributors 5 in each chamber (i.e., any feeding chamber and any discharging chamber) are equipped with an air distributor 5. Multiple points are evenly distributed. To improve the air distribution effect, it is preferable that the bottom surface of any feeding chamber and any discharging chamber is fully covered with air distributors 5. The air adjustment mechanism includes an air supply pipe 6, an air supply branch pipe 7, and a regulating valve 8. The air outlet of any air distributor 5 faces the top of the corresponding chamber, and the air inlet of any air distributor 5 faces the bottom of the corresponding chamber. The air inlet of any air distributor 5 is connected to the air supply pipe 6 through an air supply branch pipe 7, and a regulating valve 8 is installed on any air supply branch pipe 7. The air supply pipe 6 is located outside and below the material chamber. The air supply pipe 6 is used to connect to an external air source to deliver gas with a certain pressure to each air distribution mechanism. The regulating valve 8 is used to control the opening and closing of the corresponding air supply branch pipe 7, thereby adjusting the air flow rate of the air distributor 5 (including the case where the flow rate is zero, i.e., the regulating valve 8 is completely closed). The above-mentioned airlock feeding device 100 is mostly used for feeding powder materials. The airflow at the bottom of each material chamber is adjusted by regulating each regulating valve 8, thereby regulating the fluidization state of the material around each air distributor 5. The outflow rate of the material is precisely controlled by utilizing the angle of repose and friction of the powder material. The aforementioned airlock feeding device 100 can be used in conjunction with a control system, which controls the opening degree of each regulating valve 8; alternatively, each regulating valve 8 can be an automatic control valve, enabling automatic control of valve opening and closing and valve opening degree.

[0050] In some embodiments, the material chambers of the above-mentioned dispensing mechanism can be set independently or integrated into the same device. To improve the integration of the equipment, it is preferable that the material chambers of the dispensing mechanism are integrated into the same device, specifically: such as... Figure 1 As shown, the material distribution mechanism includes a housing 1, and at least one partition plate 2 is provided inside the housing 1. The partition plate 2 divides the housing 1 into multiple spaced material chambers.

[0051] In some embodiments, the airlock feeder 100 may be equipped with two, three, or more material chambers according to processing and production needs, so as to separately discharge solid materials from the upstream receiving equipment into the corresponding downstream receiving equipment in two, three, or more ways. Among these, the airlock feeder 100 with two material chambers is most commonly used, mainly to divert solid materials from the upstream receiving equipment to two sets of downstream receiving equipment in a specific ratio. This specific ratio can be equal (i.e., the amount of material discharged into both sets of downstream receiving equipment is the same) or non-equal. The following is a specific explanation using the example of the airlock feeder 100 with two material chambers:

[0052] like Figure 1 As shown, a partition plate 2 is vertically installed inside the outer shell 1 to divide the outer shell 1 into two symmetrically arranged material chambers, material chamber 3 and material chamber 4. The outline shape, internal layout, internal structure, and internal volume of material chamber 3 and material chamber 4 are completely identical. For ease of understanding and differentiation, the feed chamber, discharge chamber, discharge pipe, and partition plate of material chamber 3 are defined as feed chamber 31, discharge chamber 32, discharge pipe 33, and partition plate 34, respectively; and the feed chamber, discharge chamber, discharge pipe, and partition plate of material chamber 4 are defined as feed chamber 41, discharge chamber 42, discharge pipe 43, and partition plate 44, respectively.

[0053] In some embodiments, the air distributors 5 in the feed chamber 1, discharge chamber 1, feed chamber 2, and discharge chamber 2 are all evenly distributed in a circular or rectangular array throughout the entire outer casing 1. Considering that the material chamber 1 and material chamber 2 are generally cuboid cavities, and the feed chamber 1, discharge chamber 1, discharge chamber 32, feed chamber 2, and discharge chamber 2 are also correspondingly cuboid cavities, it is preferable that the air distributors 5 in each chamber are evenly distributed in a rectangular array to match the shape of the bottom surface of the corresponding chamber. For any rectangular array: each horizontal row of air distributors 5 is connected to a corresponding air supply duct 6, and the air supply ducts 6 are arranged in a one-to-one correspondence with the horizontal rows of the rectangular array. That is, each air distributor 5 in the same horizontal row is arranged at intervals along the axial direction of the corresponding air supply duct 6, and each air distributor 5 in the same horizontal row is connected to the same air supply duct 6 through a corresponding air supply branch duct 7. Alternatively, each vertical row of air distributors 5 can be connected to a corresponding air supply duct 6, and the air supply ducts 6 are arranged in a one-to-one correspondence with the vertical rows of the rectangular array. That is, each air distributor 5 in the same vertical row is arranged at intervals along the axial direction of the corresponding air supply duct 6, and each air distributor 5 in the same vertical row is connected to the same air supply duct 6 through a corresponding air supply branch duct 7. The aforementioned vertical and horizontal directions are mutually perpendicular. Figure 1 Taking perspective as an example, the left and right directions can be defined as horizontal, while the direction that runs vertically through the paper is vertical. Figure 1As shown, each column of air distributors 5 in the rectangular array is connected to an air supply pipe 6. The air supply pipe 6 is preferably a pipe structure with one open end and the other closed, where the open end is used to connect to an air source. The air source is generally a high-pressure gas, such as high-pressure air or a high-pressure inert gas like nitrogen.

[0054] In some implementations, the rectangular array can be specifically in the form of n (rows) × m (columns), where n and m are both positive integers not less than 6. For example, n × m can be 6 × 6, 8 × 8, 7 × 9, 6 × 8, etc. The specific form can be flexibly adjusted according to the volume of the material chamber.

[0055] In some embodiments, the airlock feeding device further includes a feeding mechanism 9, with the feed port of any one of the feeding chambers (i.e., feeding chamber one 31 and feeding chamber two 41) connected to the feeding mechanism 9. The feeding mechanism 9 is used to connect to an upstream feeding device and to distribute the material to each feeding chamber. Preferably, the feeding mechanism 9 can be a multi-port pipe or a multi-port valve. Figure 1 As shown, the feeding mechanism 9 adopts a three-way pipe structure, with its top connected to the upstream receiving equipment and its two bottom outlets connected to the inlets of feeding chamber 1 31 and feeding chamber 2 41, respectively.

[0056] The airlock feeding method implemented based on the above-mentioned airlock feeding device 100 includes the following steps:

[0057] Step 1: The material enters the feeding chamber 1 31 and the feeding chamber 2 41 through two paths via the feeding mechanism 9. At the same time, the regulating valves 8 corresponding to some or all of the air distributors 5 in each feeding chamber are regulated (including at least valve opening and closing and valve opening adjustment). By regulating the air flow rate and air outlet area of ​​the air distribution mechanism, the fluidization state of the material in each feeding chamber is controlled, thereby regulating the material inflow rate of the feeding chamber 1 31 and the feeding chamber 2 41 by utilizing the fluidization state of the material in the feeding chamber.

[0058] Step 2: Adjust (at least including valve opening and closing and valve opening adjustment) the regulating valves 8 corresponding to some or all of the air distributors 5 in discharge chamber 1 32 and discharge chamber 2 42, so as to control the fluidization state of the material in each discharge chamber by adjusting the air flow and air area of ​​the air distribution mechanism, thereby using the fluidization state of the material in the discharge chamber to regulate the material outflow of discharge chamber 1 32 and discharge chamber 2 42;

[0059] Step 3: Based on the operating parameters of the downstream receiving equipment connected to each discharge pipe 33 and discharge pipe 43, adjust (at least including valve opening and closing and valve opening adjustment) some or all of the regulating valves 8 corresponding to the air distributors 5 in material chamber 3 and material chamber 4, so as to control the fluidization state of the material in each material chamber by adjusting the air flow rate and air outlet area of ​​the air distribution mechanism in each material chamber, until the material outflow of discharge pipe 33 and discharge pipe 43 reaches the set ratio; wherein, the operating parameters that can be referenced in the downstream receiving equipment include at least the temperature, oxygen content and pressure of the downstream receiving equipment.

[0060] The above-mentioned airlock feeding device and airlock feeding method can be applied to the magnetization roasting of refractory iron ore. Specifically, the feeding end of the feeding mechanism 9 is connected to the outlet of the heating furnace, and the outlets of the discharge pipe 1 33 and the discharge pipe 2 43 are respectively connected to the two reactors.

[0061] The above-mentioned airlock feeding device and airlock feeding method can also be applied to the shale oil production industry. Specifically, the feed end of the feeding mechanism 9 is connected to the outlet of the dry distillation unit, and the outlets of the discharge pipe 1 33 and the discharge pipe 2 43 are respectively connected to the main furnace and the cooler.

[0062] The above-mentioned airlock feeding device and airlock feeding method can also be applied to the lignite upgrading industry. Specifically, the feed end of the feeding mechanism 9 is connected to the outlet of the dry distillation unit, and the outlets of the discharge pipe 1 33 and the discharge pipe 2 43 are respectively connected to the main furnace and the cooler.

[0063] In addition to the above-mentioned working conditions, the airlock feeding device and airlock feeding method proposed in this solution can also be applied to other industrial situations that require airlocking and adjustment of feeding amount or single airlocking and single adjustment of distributing amount.

[0064] Example 2

[0065] This embodiment proposes an airlock feeding system, including an upstream receiving device, a downstream receiving device, and an airlock feeding device 100 of any of the above. The upstream receiving device is connected to the feed hole of any feeding chamber, and any discharge pipe of the airlock feeding device is connected to a downstream receiving device.

[0066] Example 3

[0067] This embodiment proposes an airlock feeding system, in which the airlock feeding device 100 is mainly used to divert solid materials from the upstream receiving equipment to two sets of downstream receiving equipment in a specific ratio. That is, the airlock feeding device 100 is provided with only two material chambers. Based on this, the airlock feeding system can be a magnetized roasting system for refractory iron ore, a shale oil production system, or a lignite upgrading system, etc., wherein: in the magnetized roasting system for refractory iron ore, the upstream receiving equipment is a heating furnace and the downstream receiving equipment is a reactor; in the shale oil production system, the upstream receiving equipment is a dry distiller and the downstream receiving equipment includes a main furnace and a cooler; in the lignite upgrading system, the upstream receiving equipment is a dry distiller and the downstream receiving equipment includes a main furnace and a cooler.

[0068] It should be understood that the structures, proportions, sizes, etc., depicted in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and are not intended to limit the scope of this invention. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of this invention, should still fall within the scope of the disclosed technical content. Furthermore, the terms "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and not intended to limit the scope of this invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this invention.

[0069] This utility model uses specific examples to illustrate its principles and implementation methods. The above description of the embodiments is only for the purpose of helping to understand the method and core idea of ​​this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the idea of ​​this utility model. In summary, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A lock-air feeding device, characterized in that, include: The material distribution mechanism includes multiple spaced-apart material chambers. Each material chamber is equipped with a partition, the top of which is connected to the material chamber and the bottom of which is spaced from the material chamber, so as to divide the material chamber into a feeding chamber and a discharging chamber that are only connected at the bottom. Each feeding chamber has a feeding hole at the top for connecting to an upstream feeding device. Each discharging chamber has a discharging pipe with the outlet sloping downwards on the top side wall for connecting to a downstream receiving device. The air distribution mechanism includes multiple air distributors. The air distribution mechanism is provided at the bottom of any of the feeding chambers and any of the discharging chambers, and the air distributors of the air distribution mechanism are evenly distributed at multiple points in each chamber. The air distribution mechanism includes an air supply duct, an air supply branch duct, and a regulating valve. Each of the air distributors is connected to the air supply duct through an air supply branch duct, and each of the air supply branch ducts is equipped with a regulating valve. The air supply duct is used to connect to an external air source to supply gas to the air distribution mechanism, and the regulating valve is used to control the opening and closing of the corresponding air supply branch duct.

2. The airlock feeding device according to claim 1, characterized in that, The material distribution mechanism includes a housing, and at least one partition plate is provided inside the housing to divide and form a plurality of spaced-apart material cavities within the housing.

3. The airlock feeding device according to claim 2, characterized in that, A partition plate is provided inside the outer shell to divide the outer shell into two symmetrically arranged material chambers, material chamber one and material chamber two.

4. The airlock feeding device according to any one of claims 1 to 3, characterized in that, The air distributors in any one of the feeding chambers and any one of the discharging chambers are evenly distributed in a circular or rectangular array.

5. The airlock feeding device according to claim 4, characterized in that, The air distributors in any one of the feed chambers and any one of the discharge chambers are all evenly distributed in the rectangular array, and in any one of the rectangular arrays: Each row of air distributors is connected to one of the air supply pipes, and the air supply pipes are arranged in a one-to-one correspondence with the rows of the rectangular array. Alternatively, each column of air distributors is connected to a corresponding air supply pipe, and the air supply pipes are arranged in a one-to-one correspondence with the columns of the rectangular array.

6. The airlock feeding device according to any one of claims 1 to 3, characterized in that, It also includes a feeding mechanism, wherein the feeding port of any of the feeding chambers is connected to the feeding mechanism, which is used to connect to the upstream feeding equipment and to divert the material to each of the feeding chambers.

7. The airlock feeding device according to claim 6, characterized in that, The feeding mechanism is a multi-port pipe or a multi-port valve.

8. A lock-feed system, characterized in that, It includes an upstream receiving device, a downstream receiving device, and an airlock feeding device as described in any one of claims 1 to 7, wherein the upstream receiving device is connected to the feed hole of any one of the feed chambers, and any one of the discharge pipes of the airlock feeding device is connected to a downstream receiving device.

9. The airlock feeding system according to claim 8, characterized in that, The airlock feeding system is a magnetic roasting system for refractory iron ore, wherein the upstream receiving device is a heating furnace and the downstream receiving device is a reactor.

10. The airlock feeding system according to claim 8, characterized in that, The airlock feeding system is a shale oil production system, wherein the upstream receiving equipment is a dry distiller, and the downstream receiving equipment includes a main furnace and a cooler; Alternatively, the airlock feeding system is a lignite upgrading system, wherein the upstream receiving equipment is a dry distiller, and the downstream receiving equipment includes a main furnace and a cooler.

Images