Lubricating and protecting device for sulfur dioxide smelting fan of Isa furnace

Abstract

The utility model discloses an Isa furnace smelting sulfur dioxide fan lubrication protection device, which comprises a main body assembly, a fan assembly and a fan assembly, and the switching assembly comprises a first control box placed beside the original control box, an installation electric wire electrically connected with the first control box, and a second control electric wire electrically connected with the first control box. The problems that a display of an industrial personal computer of an existing sulfuric acid master control room is black, a DCS control system loses power, signals of all control points are lost, a sulfur dioxide fan lubricating oil pump stops, and consequently a bearing bush of a sulfur dioxide fan is damaged due to oil shortage are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of Isa furnace smelting, in particular to a lubrication and protection device for a sulfur dioxide fan of an Isa furnace smelting. Background Art

[0002] The Isa furnace is a high-temperature resistance furnace. It is an electric heating device used to generate high temperatures. It is often used in high-temperature heating, carbonization, sintering and other process. When smelting, the Isa furnace needs to use a sulfur dioxide fan, and the fan is equipped with a protective device.

[0003] However, it still has the following disadvantages in actual use:

[0004] The industrial computer display in the existing sulfuric acid main control room will go black, the DCS control system will lose power, the signals of each control point will be lost, and the sulfur dioxide fan lubricating oil pump will shut down, causing the sulfur dioxide fan bearing to lack oil and be damaged. Utility Model Content

[0005] The utility model aims to provide a lubrication protection device for a sulfur dioxide fan in an Isa furnace for smelting sulfur dioxide. By switching components, the utility model solves the problem in the above-mentioned background technology that the industrial computer display in the existing sulfuric acid main control room will go black, the DCS control system will lose power, the signals of each control point will be lost, the lubricating oil pump of the sulfur dioxide fan will stop, and the sulfur dioxide fan bearing will be damaged due to lack of oil.

[0006] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0007] The utility model is a lubrication protection device for a sulfur dioxide fan of an Isa furnace, comprising:

[0008] Main components, including the original control box;

[0009] The switching assembly includes a first control box placed beside the original control box, an installation electrical wire electrically connected to the first control box, and a second control electrical wire electrically connected to the first control box.

[0010] Furthermore, the main component also includes a crude oil pump 1 placed on one side of the original control box, a control electrical wire 1 electrically connecting the original control box and the crude oil pump 1, a connecting electrical wire electrically connected to the crude oil pump 1, and a crude oil pump 2 electrically connected to the other end of the connecting electrical wire.

[0011] Furthermore, the other end of the installation electrical wire is electrically connected to the other side of the original control box, and the other end of the control electrical wire 2 is electrically connected to one end of the crude oil pump 2.

[0012] Furthermore, a switching electrical wire is electrically connected between the crude oil pump 1 and the crude oil pump 2, and one end of the switching electrical wire is electrically connected to the other side box of the crude oil pump 1, and the other end of the switching electrical wire is electrically connected to the other side of the crude oil pump 2.

[0013] Furthermore, the first control box is provided with a 63A power circuit breaker and a 65A three-phase control contactor.

[0014] Furthermore, a switch is fixedly connected to the periphery of the switching electrical wire, and an indicator light is fixedly connected to the surface of the first control box.

[0015] Compared with the prior art, the advantages of the present invention are:

[0016] 1. In the utility model, the control box is connected to the first control box, and the electrical wires of the original control connection of the two oil pumps are switched through the interlocking switching switch to control the switching of the electrical wires, so as to control the second crude oil pump separately. When the two lubricating oil pumps of the sulfur dioxide fan stop at the same time due to the loss of the control signal, the interlocking standby switching electrical wires control to start one of the oil pumps to supply oil to each lubrication point of the fan, optimize the control of the lubricating oil pump, avoid the oil pump being unable to start due to the loss of the DCS control signal, and reduce the damage of the sulfur dioxide fan bearing due to lack of oil.

[0017] 2. Based on the first beneficial effect, the first control box is connected to the original control box by installing electrical wires, and at the same time, the first control box is connected to the control switching electrical wires by controlling the second electrical wires; an interlocking switch is installed on the crude oil pump control box panel to interlock the backup control circuit; a high-level mailbox is added. When the factory loses power, the fan runs due to inertia and is lubricated by the high-level oil tank.

[0018] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 For this utility model Figure 1 Enlarged structural diagram at A in the middle.

[0022] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0023] 11. Original control box; 12. Crude oil pump 1; 13. Control electrical wire 1; 14. Crude oil pump 2; 15. Connect electrical wires; 21. First control box; 22. Install electrical wires; 23. Control electrical wire 2; 24. Switch electrical wires; 25. Switch; 26. Indicator light. DETAILED DESCRIPTION

[0024] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and understandable, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0025] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific implementation methods disclosed below.

[0026] In order to make the purpose, technical solution and advantages of the present invention more clear, the implementation mode of the present invention will be further described in detail below with reference to the accompanying drawings.

[0027] Embodiment 1

[0028] See also Figure 1-Figure 2 As shown, this embodiment is a lubrication protection device for a sulfur dioxide fan in an Isa furnace, comprising:

[0029] The main assembly includes the original control box 11;

[0030] The switching assembly includes a first control box 21 placed beside the original control box 11, an installation electrical wire 22 electrically connected to the first control box 21, and a second control electrical wire 23 electrically connected to the first control box 21;

[0031] The first control box 21 is used as a backup control box, and the first control box 21 is interlocked with the original control box 11, and an electrical wire 22 is installed to electrically connect the first control box 21 with the original control box 11, and a second control electrical wire 23 is used to electrically connect the first control box 21 with the second crude oil pump 14;

[0032] The main assembly also includes a crude oil pump 12 placed on one side of the original control box 11, a control electrical wire 13 electrically connecting the original control box 11 and the crude oil pump 12, a connecting electrical wire 15 electrically connected to the crude oil pump 12, and a crude oil pump 2 14 electrically connected to the other end of the connecting electrical wire 15;

[0033] The crude oil pump 1 12 and the crude oil pump 2 14 are both used for lubricating the sulfur dioxide fan, the control electrical wire 13 is used for electrically connecting the crude oil pump 1 12 with the original control box 11, and the connecting electrical wire 15 is used for electrically connecting the crude oil pump 1 12 with the crude oil pump 2 14;

[0034] The other end of the installation electrical wire 22 is electrically connected to the other side of the original control box 11, and the other end of the control electrical wire 23 is electrically connected to one end of the crude oil pump 2 14;

[0035] The original control box 11 can interlock and control the control circuit of the first control box 21 by installing the electrical wire 22. When the two oil pumps are stopped at the same time, the first control box 21 starts one of the crude oil pumps to supply oil to the fan by controlling the electrical wire 23.

[0036] A switching electrical wire 24 is electrically connected between the crude oil pump 12 and the crude oil pump 2 14 , and one end of the switching electrical wire 24 is electrically connected to the other side box of the crude oil pump 1 12 , and the other end of the switching electrical wire 24 is electrically connected to the other side of the crude oil pump 2 14 ;

[0037] In the case that both oil pumps are stopped at the same time, one of the crude oil pumps can be started to supply oil to the fan by switching the electrical wire 24;

[0038] The first control box 21 is equipped with a 63A power circuit breaker and a 65A three-phase control contactor;

[0039] With such a configuration, it is possible to better switch to the backup line through the first control box 21 to start one of the stopped crude oil pumps;

[0040] A switch 25 is fixedly connected to the periphery of the switching electrical wire 24, and an indicator light 26 is fixedly connected to the surface of the first control box 21;

[0041] When switching to the switching electrical wire 24, the control switch 25 controls the use of the switching electrical wire 24, so as to start the oil pump operation. The installation electrical wire 22, the control electrical wire 23, and the switching electrical wire 24 are all 4×6mm2 cables, and the circuits of the three are spare control circuits;

[0042] The indicator light 26 is used to show whether the backup line is used successfully;

[0043] Working principle:

[0044] 1. Before starting the sulfur dioxide blower, switch the "remote, on-site" conversion switch to start the lubricating oil pump in the DCS or on-site. When the oil pump starts normally, install the electrical wire 22 to interlock the first control box 21. The first control box 21 starts the switch 25 by controlling the electrical wire 23. The switch 25 controls the crude oil pump 1 12 and the crude oil pump 2 14 to switch to the "interlocking start" position by switching the electrical wire 24.

[0045] 2. When the sulfur dioxide blower stops and the oil pump stopping condition is met, the first control box 21 is interlocked and controlled. The first control box 21 starts the switch 25 by controlling the electrical wire 23. The switch 25 switches to the "interlock release" position by switching the electrical wire 24. Then the DCS is operated normally to remotely or on-site press the stop button to stop the oil pump.

[0046] 3. When the sulfur dioxide fan suddenly stops, the personnel on duty should rush to the site to check the operation of the lubricating oil pump and report the operation to the branch electrical technicians. If the interlock standby control circuit operation indicator 26 is on, the sulfur dioxide fan reaches the oil pump stop condition, turn the "interlock input" switch to the "interlock release" position, the oil pump stops running, and after the original control of the oil pump is normal, start the oil pump according to the above operation method "1". After it runs normally, start the sulfur dioxide fan according to the company's dispatching instructions;

[0047] The above steps improve your functionality.

[0048] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0049] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A lubrication and protection device for a sulfur dioxide fan in an Isa furnace, characterized in that: include: The main assembly includes the original control box (11); The switching assembly comprises a first control box (21) placed beside the original control box (11), an installation electrical wire (22) electrically connected to the first control box (21), and a second control electrical wire (23) electrically connected to the first control box (21).

2. The lubrication and protection device for the sulfur dioxide blower of the Isa furnace smelting according to claim 1 is characterized in that: The main assembly also includes a crude oil pump (12) placed on one side of the original control box (11), a control electrical wire (13) electrically connecting the original control box (11) and the crude oil pump (12), a connecting electrical wire (15) electrically connected to the crude oil pump (12), and a crude oil pump (14) electrically connected to the other end of the connecting electrical wire (15).

3. The lubrication and protection device for the sulfur dioxide blower of the Isa furnace smelting according to claim 1 is characterized in that: The other end of the installation electrical wire (22) is electrically connected to the other side of the original control box (11), and the other end of the second control electrical wire (23) is electrically connected to one end of the second crude oil pump (14).

4. The lubrication and protection device for the sulfur dioxide blower of the Isa furnace smelting according to claim 2 is characterized in that: A switching electrical wire (24) is electrically connected between the crude oil pump 1 (12) and the crude oil pump 2 (14), and one end of the switching electrical wire (24) is electrically connected to the other side box of the crude oil pump 1 (12), and the other end of the switching electrical wire (24) is electrically connected to the other side of the crude oil pump 2 (14).

5. The lubrication and protection device for the sulfur dioxide blower of the Isa furnace smelting according to claim 1 is characterized in that: The first control box (21) is equipped with a 63A power circuit breaker and a 65A three-phase control contactor.

6. The lubrication and protection device for the sulfur dioxide blower of the Isa furnace smelting according to claim 4 is characterized in that: A switch (25) is fixedly connected to the periphery of the switching electrical wire (24), and an indicator light (26) is fixedly connected to the surface of the first control box (21).

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