Moisture-proof PAM dosing device

Abstract

A moisture-proof PAM dosing device relates to the technical field of sewage treatment and comprises a bin, the bin comprises a shell and a storage cavity located in the shell, a discharge port is formed in the bottom of the storage cavity, a discharge barrel is arranged at the discharge port, and the discharge barrel is arranged around the discharge port; and the discharging barrel is provided with a heating device. PAM materials can be heated through the heating device in the discharging barrel, and the PAM agents are prevented from being affected with damp and agglomerated at the outlet of the stock bin. Compared with the whole heating mode of the stock bin in the prior art, the heating mode is more accurate, energy consumption is smaller, and meanwhile the problem that materials in the stock bin deteriorate due to long-time heating is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to sewage treatment technical field, specifically, relate to a kind of moisture-proof PAM dosing device. BACKGROUND

[0002] In sewage treatment process, coagulation and sedimentation and sludge dewatering often use polyacrylamide (PAM) as flocculant. Since PAM is usually stored and transported in dry powder form, it is easy to cake due to moisture during storage, resulting in uneven mixing during dosing, affecting flocculation effect, and ultimately adversely affecting sludge dewatering and water treatment. The traditional dosing device cannot effectively solve the problem of moisture-proof and uniform mixing of PAM reagent, so it is necessary to improve the dosing equipment to ensure that PAM reagent can be added to the mixing tank in the form of uniform powder. SUMMARY

[0003] The utility model aims at providing a kind of moisture-proof PAM dosing device, its structure is novel, simple operation can be efficiently to PAM carry out moisture drying, improve the uniformity of PAM reagent feeding.

[0004] The embodiments of the utility model are implemented as follows:

[0005] A kind of moisture-proof PAM dosing device, it includes bunker, bunker includes shell and the storage cavity in the shell inside, the bottom of storage cavity is provided with discharge port, discharge port is provided with discharge cylinder, discharge cylinder is set around discharge port;Discharge cylinder is provided with heating device.

[0006] Further, in other preferred embodiments of the utility model, the heating device is an electric heating wire, the electric heating wire is arranged in the wall of the discharge cylinder, the electric heating wire is arranged along the circumference of the discharge cylinder, and is arranged close to the inner wall of the discharge cylinder.

[0007] Further, in other preferred embodiments of the utility model, the heating device includes a heating cavity arranged in the wall of the discharge cylinder, the heating cavity is arranged along the circumference of the discharge cylinder, the discharge cylinder is provided with a hot medium inlet and a hot medium outlet, and the hot medium inlet and the hot medium outlet are communicated with the heating cavity.

[0008] Further, in other preferred embodiments of the utility model, the inner wall of the discharge cylinder is provided with a temperature sensor.

[0009] Further, in other preferred embodiments of the utility model, the discharge cylinder is connected with a discharge pipe, and the discharge pipe is provided with a one-way valve.

[0010] Further, in other preferred embodiments of the utility model, the top of the bunker is provided with an air suction port, the air suction port penetrates through the top wall of the bunker and is communicated with the storage cavity, and a filter screen is arranged at the air suction port.

[0011] Furthermore, in other preferred embodiments of this utility model, the silo wall is provided with an air inlet, which penetrates the silo wall and communicates with the storage cavity.

[0012] Furthermore, in other preferred embodiments of this utility model, a control module is also included, which is electrically connected to the temperature sensor and the heating device.

[0013] Furthermore, in other preferred embodiments of this utility model, the air extraction port is connected to an air extraction pump, a humidity sensor is installed in the storage chamber, and the humidity sensor, the air extraction pump, and the control module are electrically connected.

[0014] The beneficial effects of this utility model embodiment are:

[0015] This invention provides a moisture-proof PAM dosing device, comprising a silo, a shell, and a storage chamber inside the shell. A discharge port is located at the bottom of the storage chamber, and a discharge cylinder is located at the discharge port, surrounding the discharge port. A heating device is installed in the discharge cylinder. The PAM material can be heated by the heating device inside the discharge cylinder, preventing the PAM agent from becoming damp and clumping at the silo outlet. Compared to the existing method of heating the entire silo, the heating method of this invention is more precise, consumes less energy, and avoids the deterioration problem caused by prolonged heating of the material inside the silo. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a cross-sectional view of a moisture-proof PAM dosing device provided in an embodiment of the present invention.

[0018] Icons: 100-Moisture-proof PAM dosing device; 110-Hopper; 111-Shell; 112-Storage chamber; 1121-Discharge port; 113-Discharge cylinder; 1131-Heating chamber; 1132-Heat medium inlet; 1133-Heat medium outlet; 114-Air extraction port; 115-Air replenishment port; 116-Discharge pipe. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely represents selected embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0020] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0021] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0022] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0023] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature. Example

[0024] A moisture-proof PAM dosing device 100, as per reference Figure 1 As shown, it includes a hopper 110, which includes a shell 111 and a storage chamber 112 located inside the shell 111. A discharge port 1121 is provided at the bottom of the storage chamber 112, and a discharge cylinder 113 is provided at the discharge port 1121, surrounding the discharge port 1121. A heating device is provided on the discharge cylinder 113. Compared with the existing method of heating the entire hopper 110, the heating method of this invention is more precise, consumes less energy, and avoids the deterioration problem caused by prolonged heating of the material inside the hopper 110.

[0025] Furthermore, the heating device can be an electric heating wire, which is disposed inside the wall of the discharge cylinder 113, surrounding the circumference of the discharge cylinder 113 and located close to the inner wall of the discharge cylinder 113. Alternatively, the heating device can also utilize a heat medium for heating, such as hot water or hot steam. Figure 1 The diagram illustrates this heating method. The heating device includes a heating chamber 1131 disposed inside the wall of the discharge cylinder 113. The heating chamber 1131 surrounds the circumference of the discharge cylinder 113. The discharge cylinder 113 is provided with a heat medium inlet 1132 and a heat medium outlet 1133, which are connected to the heating chamber 1131. The heat medium is transported by a circulating heating pump, entering the heating chamber 1131 from the heat medium inlet 1132 and then flowing back to the circulating heating pump from the heat medium outlet 1133.

[0026] A temperature sensor (not shown) is installed on the inner wall of the discharge cylinder 113. The temperature sensor can provide real-time feedback on the heating temperature so that the heating temperature can be adjusted in a timely manner.

[0027] The moisture-proof PAM dosing device 100 also includes a control module (not shown), which is electrically connected to the temperature sensor and the heating device. The control module receives temperature feedback from the temperature sensor and controls the start and stop of the heating device. When the temperature is detected to be too low, the heating device is turned on to heat the material; when the temperature is detected to be too high, the heating device is turned off to prevent the material from overheating and deteriorating. It should be noted that when using an electric heating wire as the heating device, the control module can control the power supply to the heating wire; when using a heat transfer medium, the control module can control the start and stop of the circulating heating pump.

[0028] like Figure 1 As shown, the discharge cylinder 113 is connected to the discharge pipe 116, and the discharge pipe 116 is equipped with a one-way valve. The one-way valve can prevent the backflow of humid airflow and further prevent the PAM agent from getting damp.

[0029] A suction port 114 is provided at the top of the silo 110, penetrating the top wall of the silo 110 and communicating with the storage chamber 112. A filter screen is installed at the suction port 114. When the overall humidity of the silo 110 is high, the humid air can be extracted using a suction pump. A make-up air port 115 is provided on the wall of the silo 110, penetrating the wall of the silo 110 and communicating with the storage chamber 112. While the humid air is being extracted, dry air can enter the storage chamber 112 through the make-up air port 115 to maintain pressure balance.

[0030] A humidity sensor is installed inside the storage chamber 112. The humidity sensor and the vacuum pump are both electrically connected to the control module. When the humidity sensor detects that the humidity inside the hopper 110 is too high, it can send a signal to the control module, which will then control the vacuum pump to start and automatically extract the moisture.

[0031] In summary, this utility model provides a moisture-proof PAM dosing device 100, which includes a hopper 110. The hopper 110 includes a shell 111 and a storage chamber 112 located inside the shell 111. A discharge port 1121 is provided at the bottom of the storage chamber 112, and a discharge cylinder 113 is provided at the discharge port 1121, surrounding the discharge port 1121. The discharge cylinder 113 is equipped with a heating device. The PAM material can be heated by the heating device inside the discharge cylinder 113, preventing the PAM agent from becoming damp and clumping at the outlet of the hopper 110. Compared to the prior art's method of heating the entire hopper 110, the heating method of this utility model is more precise, consumes less energy, and avoids the deterioration problem caused by prolonged heating of the material inside the hopper 110.

[0032] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A moisture-proof PAM dosing device, characterized in that, The hopper includes a shell and a storage chamber located inside the shell. The bottom of the storage chamber is provided with a discharge port, and a discharge cylinder is provided at the discharge port. The discharge cylinder is arranged around the discharge port. The discharge cylinder is provided with a heating device.

2. The moisture-proof PAM dosing device according to claim 1, characterized in that, The heating device is an electric heating wire, which is disposed inside the wall of the discharge cylinder. The electric heating wire surrounds the circumference of the discharge cylinder and is disposed close to the inner wall of the discharge cylinder.

3. The moisture-proof PAM dosing device according to claim 1, characterized in that, The heating device includes a heating chamber disposed inside the wall of the discharge cylinder, the heating chamber surrounding the circumference of the discharge cylinder, the discharge cylinder being provided with a heat medium inlet and a heat medium outlet, the heat medium inlet and the heat medium outlet being in communication with the heating chamber.

4. The moisture-proof PAM dosing device according to claim 2 or 3, characterized in that, A temperature sensor is installed on the inner wall of the discharge cylinder.

5. The moisture-proof PAM dosing device according to claim 4, characterized in that, The discharge cylinder is connected to a discharge pipe, and the discharge pipe is equipped with a one-way valve.

6. The moisture-proof PAM dosing device according to claim 5, characterized in that, The top of the silo is provided with an air extraction port, which penetrates the top wall of the silo and communicates with the storage cavity. A filter screen is provided at the air extraction port.

7. The moisture-proof PAM dosing device according to claim 6, characterized in that, The silo wall is provided with an air inlet, which penetrates the silo wall and communicates with the storage cavity.

8. The moisture-proof PAM dosing device according to claim 7, characterized in that, It also includes a control module, which is electrically connected to the temperature sensor and the heating device.

9. The moisture-proof PAM dosing device according to claim 8, characterized in that, The air extraction port is connected to the air extraction pump, and a humidity sensor is installed in the storage chamber. The humidity sensor and the air extraction pump are electrically connected to the control module.

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