Safe feeding device for dry metal catalyst

Abstract

The utility model provides a dry metal catalyst safe feeding device which comprises a feeding bin body, a feeding port is formed in the top face of the feeding bin body, a tail gas exhaust pipe is connected to the top face of the feeding bin body, a micro-pressure nitrogen inlet pipe is connected to the side wall of the feeding bin body, and the feeding bin body is connected with a water seal device through the tail gas exhaust pipe. The micro-pressure nitrogen inlet pipe is used for introducing nitrogen into the feeding bin main body, a check valve, a stop valve and a self-operated pressure reducing valve are sequentially arranged on the micro-pressure nitrogen inlet pipe, and the self-operated pressure reducing valve is used for adjusting the pressure of the micro-pressure nitrogen in advance. The water seal device is additionally arranged at the tail gas emission position of the feeding bin to replace a bag-type dust remover, so that the risk of catalyst dust enrichment is effectively avoided; a micro-pressure nitrogen inlet pipe is designed in a matched mode, interlocking automatic control over micro-pressure nitrogen and oxygen content is achieved through a self-operated pressure reducing valve, when air is replaced, a dry catalyst and residues adhering to the wall can be kept in the nitrogen protection atmosphere all the time, anoxic feeding is achieved, and safety is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of dry metal catalysts, and particularly relates to a safe feeding device for dry metal catalysts. Background Art

[0002] Metal catalysts are widely used in chemical reactions, mainly due to their good reaction activity. However, this also brings a high risk of flammability, which has always been a headache and a problem that must be taken seriously by chemical enterprises.

[0003] Because some chemical reactions are water-sensitive, metal catalysts cannot be stored and transported in a wetted state, which greatly increases the risk. Currently, most suppliers on the market use vacuum packaging or nitrogen filling for dry metal catalysts. Although the risks during storage and transportation have been controlled, the risks during the feeding process have not been reduced at all. Summary of the Invention

[0004] To solve the above problems, the present invention discloses a safe feeding device for dry metal catalysts.

[0005] The specific solution is as follows:

[0006] A safe feeding device for dry metal catalysts, characterized in that: it includes a feeding bin main body, a feeding port is provided on the top surface of the feeding bin main body and a tail gas discharge pipe is connected, a micro-pressure nitrogen inlet pipe is connected to the side wall, the tail gas discharge pipe connects the feeding bin main body with a water seal device, the micro-pressure nitrogen inlet pipe is used to introduce nitrogen into the feeding bin main body, and a check valve, a cut-off valve and a self-operated pressure reducing valve are sequentially arranged on the micro-pressure nitrogen inlet pipe according to the gas flow direction. The self-operated pressure reducing valve is used to adjust the pressure of the micro-pressure nitrogen in advance and make the pressure slightly greater than the water seal pressure of the water seal device.

[0007] Further, the water seal device consists of two water seal tanks arranged side by side. Water is contained in both water seal tanks, and the bottoms of the two water seal tanks are connected by a water pipe. The top of one water seal tank is connected to the tail gas discharge pipe, and the top of the other water seal tank is discharged externally.

[0008] Further, a manual ball valve is installed on the tail gas discharge pipe.

[0009] Further, an oxygen content detector is also provided on the top surface of the feeding bin main body.

[0010] Further, a pneumatic hammer is also provided on the side wall of the feeding bin main body.

[0011] The beneficial effects of the present invention are as follows: The structure of the present invention is ingenious. A water seal device is added at the tail gas discharge of the feeding bin to replace the bag filter, thus effectively avoiding the risk of catalyst dust enrichment. And in cooperation with the design of a micro-pressure nitrogen inlet pipe, the interlock automatic control of micro-pressure nitrogen and oxygen content is realized through a self-operated pressure reducing valve, so that when the air is replaced, the dry catalyst and the residue adhering to the wall can always be maintained in an atmosphere protected by nitrogen, realizing oxygen-deficient feeding and ensuring safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic structural diagram of the present invention.

[0013] List of reference numerals:

[0014] 1 - Main body of the feeding bin, 2 - Feeding port, 3 - Tail gas discharge pipe, 4 - Micro-pressure nitrogen inlet pipe, 5 - Check valve, 6 - Shut-off valve, 7 - Self-operated pressure reducing valve, 8 - Water seal tank, 9 - Manual ball valve, 10 - Oxygen content detector, 11 - Pneumatic hammer. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0015] The following further clarifies the present invention in conjunction with the drawings and specific embodiments. It should be understood that the following specific embodiments are only used to illustrate the present invention and not to limit the scope of the present invention.

[0016] As shown in the figure, the present invention discloses a safe feeding device for dry metal catalysts, including a main body 1 of the feeding bin. A feeding port 2 is provided on the top surface of the main body 1 of the feeding bin and a tail gas discharge pipe 3 is connected. A micro-pressure nitrogen inlet pipe 4 is connected to the side wall. The tail gas discharge pipe connects the main body 1 of the feeding bin with the water seal device. The micro-pressure nitrogen inlet pipe 4 is used to introduce nitrogen into the main body 1 of the feeding bin, and a check valve 5, a shut-off valve 6 and a self-operated pressure reducing valve 7 are sequentially arranged on the micro-pressure nitrogen inlet pipe 4 in the air flow direction. The self-operated pressure reducing valve 7 is used to adjust the pressure of the micro-pressure nitrogen in advance and make the pressure greater than the water seal pressure of the water seal device.

[0017] In this embodiment, the water seal device is composed of two water seal tanks 8 arranged side by side. Water is contained in both water seal tanks 8, and the bottoms of the two water seal tanks 8 are connected by a water pipe. The top of one water seal tank 8 is connected to the tail gas discharge pipe 3, and the top of the other water seal tank 8 is discharged externally.

[0018] In this embodiment, a manual ball valve 9 is installed on the tail gas discharge pipe 3.

[0019] In this embodiment, an oxygen content detector 10 is also provided on the top surface of the main body 1 of the feeding bin.

[0020] In this embodiment, a pneumatic hammer 11 is also provided on the side wall of the main body 1 of the feeding bin.

[0021] The present invention adds a water seal device at the tail gas discharge of the main body of the feeding bin to replace the bag filter, thus effectively avoiding the risk of catalyst dust enrichment; and cooperates with the design of a micro-pressure nitrogen inlet pipe to realize the interlocking automatic control of micro-pressure nitrogen and oxygen content through a self-acting pressure reducing valve, so that when the air is replaced, the dry catalyst and the residue sticking to the wall can always be maintained in the atmosphere of nitrogen protection, realizing oxygen-deficient feeding and ensuring safety.

[0022] The technical means disclosed in the solution of the present invention are not limited to the technical means disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and retouches can be made, and these improvements and retouches are also regarded as the protection scope of the present invention.

Claims

1. A dry metal catalyst safe feeding device, characterized in that: The invention comprises a feeding bin body (1), wherein a feeding port (2) is provided on the top surface of the feeding bin body (1) and is connected to an exhaust gas discharge pipe (3), and a micro-pressure nitrogen gas inlet pipe (4) is connected to the side wall, wherein the exhaust gas discharge pipe connects the feeding bin body (1) to a water seal device, wherein the micro-pressure nitrogen gas inlet pipe (4) is used to introduce nitrogen into the feeding bin body (1), and a check valve (5), a shut-off valve (6) and a self-operated pressure reducing valve (7) are provided on the micro-pressure nitrogen gas inlet pipe (4) in sequence according to the direction of the gas flow, wherein the self-operated pressure reducing valve (7) is used to adjust the pressure of the micro-pressure nitrogen gas in advance and make the pressure greater than the water seal pressure of the water seal device.

2. A dry metal catalyst safe feeding device according to claim 1, characterized in that: The water seal device is composed of two water seal tanks (8) arranged side by side, each of the water seal tanks (8) contains water, and the bottoms of the two water seal tanks (8) are connected through a water pipe, the top of one water seal tank (8) is connected to the exhaust gas discharge pipe (3), and the top of the other water seal tank (8) is discharged externally.

3. A dry metal catalyst safe feeding device according to claim 1, characterized in that: A manual ball valve (9) is installed on the exhaust gas discharge pipe (3).

4. A dry metal catalyst safe feeding device according to claim 1, characterized in that: An oxygen content detector (10) is also provided on the top surface of the feeding bin body (1).

5. A dry metal catalyst safe feeding device according to claim 1, characterized in that: An air hammer (11) is also provided on the side wall of the feeding bin body (1).

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