A hot air distribution plate for drying sodium hydrosulfide

Abstract

The utility model discloses a kind of hot air distribution plate of sodium hydrosulfide drying, belong to drying equipment technical field, for solving the problem that existing hot air distribution is uneven and flow velocity is difficult to adjust, the hot air distribution plate includes outer plate, gas inlet and gas outlet, outer plate inner chamber is equipped with a baffle, inner chamber is separated into full bin communicated with gas inlet and release bin communicated with gas outlet, baffle top end and outer plate inner wall form passage, hot air needs to be full bin again overflow discharge, gas outlet place is also equipped with the baffle slidable by cylinder drive, for changing the opening area of gas outlet, the utility model is released by forced airflow first storage pressure, fundamentally guarantee the uniformity of air outlet, simultaneously, the accurate control of air outlet flow velocity is realized by the adjusting function of baffle, improve drying quality and process adaptability.

Description

Technical Field

[0001] This utility model relates to the field of drying equipment technology, and in particular to a hot air distribution plate for drying sodium hydrosulfide. Background Technology

[0002] In the field of chemical production, especially in the production of powdered or granular materials such as sodium hydrosulfide, drying is a crucial process. Its purpose is to remove excess moisture from the material to meet product quality standards. Hot air drying has become a mainstream drying method due to its high efficiency and wide application. To achieve uniform drying over a large area, hot air distribution plates or similar devices are usually used in production to disperse the concentrated hot air flow from a single air source into multiple airflows and blow them evenly onto the surface of the material to be dried.

[0003] However, in existing hot air distribution plate designs, after hot air enters the cavity through the inlet, it often flows directly to the nearest outlet due to the natural characteristic of fluids seeking the shortest path, creating an airflow "short-circuit" phenomenon. This directly results in excessive airflow and high air velocity at outlets near the inlet, while the airflow at outlets far from the inlet is significantly insufficient, causing extremely uneven hot air distribution across the entire outlet surface. This unevenness directly affects the drying effect, causing some materials to become over-dried or even damaged due to excessive temperature, while other materials still contain too much moisture and do not meet the drying standards, seriously affecting the overall quality of the final product and production efficiency.

[0004] Furthermore, in actual drying processes, different drying stages or different material types have different requirements for hot air velocity. For example, in the early stage of drying, for lighter powdery materials, a lower air velocity may be required to avoid the material being blown away and causing loss. In the later stage of drying, a higher air velocity may be required to enhance heat and mass transfer efficiency and shorten drying time. Most existing hot air distribution plates are static structures, and their outlet air velocity is mainly determined by the speed of the front-end fan. They lack the ability to be conveniently and effectively adjusted on the equipment itself. This makes process adjustment complex and imprecise, greatly limiting the applicability and process flexibility of the equipment, and making it difficult to adapt to changing production needs. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a hot air distribution plate for drying sodium hydrosulfide, which aims to improve the problems of uneven hot air distribution and difficulty in adjusting the flow rate during the drying process of sodium hydrosulfide in the prior art.

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

[0007] A hot air distribution plate for drying sodium hydrosulfide includes: an outer plate, an air inlet disposed on the outer plate, and an air outlet disposed on the outer plate; it also includes a uniform distribution component and a speed control component disposed in the inner cavity of the outer plate.

[0008] The uniform assembly includes a partition that divides the inner cavity of the outer plate into a filling chamber and a releasing chamber; the speed control assembly includes a baffle.

[0009] The air inlet is connected to the filling chamber, the air outlet is connected to the releasing chamber, and a channel is formed between the top of the partition and the top inner wall of the outer plate to connect the filling chamber and the releasing chamber; the baffle is slidably disposed at the air outlet.

[0010] Preferably, the speed control component further includes a cylinder, the output end of which is connected to the baffle in a transmission manner.

[0011] Furthermore, the output end of the cylinder is connected to the baffle via a drive plate.

[0012] Furthermore, the speed control component also includes an extension plate, which is disposed between the output end of the cylinder and the drive plate.

[0013] Preferably, the outlet end of the air inlet is located inside the filling chamber and adjacent to the bottom end of the inner wall of the outer plate.

[0014] Preferably, there are multiple air outlets, which are arranged side by side along the wall of the outer panel.

[0015] In one specific implementation, the sliding direction of the baffle is parallel to the arrangement direction of the plurality of air outlets.

[0016] Preferably, the baffle is slidably disposed inside the outer plate.

[0017] This utility model has the following beneficial effects:

[0018] 1. This utility model divides the cavity into a filling chamber and a releasing chamber by setting an internal partition. The forced hot air must first completely fill the filling chamber before overflowing into the releasing chamber. This effectively avoids hot air rushing directly from the air inlet to the air outlet, ensuring that the flow rate and pressure of the hot air blown out from each air outlet are highly uniform. This results in consistent heating of the material, significantly improving the uniformity of drying and the quality of the final product, and preventing local over-drying or under-drying.

[0019] 2. In this utility model, a speed control component consisting of a baffle driven by a cylinder is provided. The total opening area of ​​the air outlet can be changed by controlling the sliding position of the baffle. Under the condition that the total air intake remains unchanged, the air speed of the air outlet can be conveniently and accurately adjusted to adapt to the different process requirements of different materials or the same material at different drying stages, thereby enhancing the applicability of the equipment and the flexibility of process control. Attached Figure Description

[0020] Figure 1 This is a three-dimensional schematic diagram of a hot air distribution plate for drying sodium hydrosulfide according to the present invention.

[0021] Figure 2 This is a schematic diagram of the partition of a hot air distribution plate for drying sodium hydrosulfide according to the present invention.

[0022] Figure 3 This is a schematic diagram of the cylinder structure for a hot air distribution plate for drying sodium hydrosulfide according to this utility model.

[0023] Figure 4 This is a schematic diagram of the baffle of a hot air distribution plate for drying sodium hydrosulfide according to the present invention.

[0024] Legend:

[0025] 1. Outer panel; 2. Air inlet; 3. Uniform distribution component; 301. Filling chamber; 302. Release chamber; 303. Partition; 4. Air outlet; 5. Speed ​​control component; 501. Baffle; 502. Cylinder; 503. Drive plate; 504. Extension plate. Detailed Implementation

[0026] 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.

[0027] Reference Figures 1-4This utility model provides an embodiment of a hot air distribution plate for drying sodium hydrosulfide, comprising an outer plate 1, which is a hollow structure with an internal cavity for accommodating and guiding the flow of hot air. An air inlet 2 and an air outlet 4 are fixedly mounted on the outer plate 1, and are respectively connected to the internal cavity of the outer plate 1 to allow hot air to flow in and out. The hot air distribution plate also includes a uniform distribution component 3 and a speed control component 5. The uniform distribution component 3 is fixedly mounted in the internal cavity of the outer plate 1 and includes a partition 303 as a core dividing member. The partition 303 is a vertically arranged plate that is fixedly connected to the inner wall of the outer plate 1 by welding. The partition 303 divides the internal cavity of the outer plate 1. The spacer is divided into two sub-chambers: a filling chamber 301 connected to the air inlet 2 and a releasing chamber 302 connected to the air outlet 4. A pre-set gap is maintained between the upper end face of the partition 303 and the top inner wall of the outer plate 1. This gap forms the only channel connecting the filling chamber 301 and the releasing chamber 302. After the hot air enters the filling chamber 301 from the air inlet 2, it must first flow upward to fill the entire filling chamber 301, then overflow from the channel at the top of the partition 303 into the releasing chamber 302, and finally flow downward to be discharged through the air outlet 4. The speed control component 5 is used to adjust the flow rate of the hot air blown out from the air outlet 4. The speed control component 5 includes a baffle 501 that can reciprocate linearly inside the outer plate 1. The baffle 501 slides... The speed control assembly 5 also includes a cylinder 502 as a power source, with the cylinder body of the cylinder 502 fixedly mounted on the outer wall of the outer plate 1. An extension plate 504 and a driving plate 503 are sequentially fixedly connected to the output end of the cylinder 502. The end of the driving plate 503 is fixedly connected to a baffle 501. The extension plate 504, driving plate 503, and baffle 501 together constitute a rigid transmission mechanism. When the output end of the cylinder 502 extends or retracts linearly, the transmission mechanism drives the baffle 501 to slide synchronously, thereby changing the area of ​​the baffle 501 blocking the air outlet 4. The outlet end of the air inlet 2 extends deep into the interior of the filling chamber 301, and its… Located near the bottom of the inner wall of the outer panel 1, this arrangement ensures that hot air is filled from the bottom of the filling chamber 301, enhancing the upward flow path of the airflow and its overflow. In another specific embodiment, there are multiple air outlets 4, which are arranged linearly side by side along the wall of the outer panel 1. Correspondingly, the baffle 501 is a long strip plate whose length matches the total length of the multiple air outlets 4. The sliding direction of the baffle 501 is parallel to the arrangement direction of the multiple air outlets 4. By sliding, the multiple air outlets 4 can be linearly and gradually blocked or opened. To protect the baffle 501 and the internal components, the baffle 501 is slidably arranged in the internal space of the outer panel 1.

[0028] Working principle: When the hot air distribution plate is working, external hot air enters the filling chamber 301 inside the outer plate 1 through the air inlet 2. Due to the obstruction of the baffle 303, the hot air cannot flow directly to the air outlet 4, but is forced to gradually accumulate from the bottom of the filling chamber 301 upwards. This process creates a uniformly pressurized static pressure chamber inside the filling chamber 301. After the hot air completely fills the entire filling chamber 301, it will steadily overflow from the channel formed between the top of the baffle 303 and the inner wall of the top of the outer plate 1 to the release chamber 302. The hot air entering the release chamber 302 then flows from top to bottom and is finally blown out through multiple air outlets 4 with uniform flow and pressure, thus solving the problem of hot air short-circuiting causing air leakage. To address the issue of uneven airflow, when it is necessary to adjust the flow rate of hot air blown from outlet 4, the cylinder 502 of the speed control component 5 is activated. To increase the flow rate, the output end of the cylinder 502 is controlled to retract, which, through the transmission of the extension plate 504 and the drive plate 503, pulls the baffle 501 to slide, causing the baffle 501 to block part of the outlet 4. This reduces the total air outlet area, thereby increasing the flow rate of hot air blown from the remaining unblocked outlet 4 without changing the total air intake volume. Conversely, to decrease the flow rate, the output end of the cylinder 502 is controlled to extend, pushing the baffle 501 to slide in the opposite direction, opening more or all of the outlets 4, increasing the total air outlet area, and thus reducing the flow rate of the blown hot air.

Claims

1. A hot air distribution plate for drying sodium hydrosulfide, comprising: outer panel(1); An air inlet (2) is provided on the outer panel (1); An air outlet (4) is provided on the outer panel (1); The invention is characterized by further comprising: a uniform component (3), wherein the uniform component (3) is disposed in the inner cavity of the outer plate (1), the uniform component (3) includes a partition (303), the partition (303) divides the inner cavity of the outer plate (1) into a filling chamber (301) and a releasing chamber (302), the air inlet (2) is connected to the filling chamber (301), the air outlet (4) is connected to the releasing chamber (302), and a channel connecting the filling chamber (301) and the releasing chamber (302) is formed between the top of the partition (303) and the top inner wall of the outer plate (1); and a speed control component (5), wherein the speed control component (5) includes a baffle (501), the baffle (501) being slidably disposed at the air outlet (4).

2. The hot air distribution plate for drying sodium hydrosulfide according to claim 1, characterized in that: The speed control component (5) also includes a cylinder (502), the output end of which is connected to the baffle (501) in a transmission manner.

3. The hot air distribution plate for drying sodium hydrosulfide according to claim 2, characterized in that: The speed control component (5) also includes a drive plate (503), and the output end of the cylinder (502) is connected to the baffle (501) through the drive plate (503).

4. The hot air distribution plate for drying sodium hydrosulfide according to claim 3, characterized in that: The speed control component (5) also includes an extension plate (504), which is disposed between the output end of the cylinder (502) and the drive plate (503).

5. The hot air distribution plate for drying sodium hydrosulfide according to claim 1, characterized in that: The outlet end of the air inlet (2) is located inside the filling chamber (301) and adjacent to the bottom end of the inner wall of the outer plate (1).

6. The hot air distribution plate for drying sodium hydrosulfide according to claim 1, characterized in that: There are multiple air outlets (4), which are arranged side by side along the wall of the outer plate (1).

7. The hot air distribution plate for drying sodium hydrosulfide according to claim 6, characterized in that: The sliding direction of the baffle (501) is parallel to the arrangement direction of the air outlet (4).

8. The hot air distribution plate for drying sodium hydrosulfide according to claim 1, characterized in that: The baffle (501) is slidably disposed inside the outer plate (1).

Images