Device for measuring thermal reactivity of coke

Abstract

The utility model relates to a device for measuring the thermal reactivity of coke, which comprises a base, a heating furnace body arranged on the base, a furnace body cover connected to the heating furnace body, a reaction port arranged in the middle of the furnace body cover, and a reactor arranged in the heating furnace body from the reaction port and comprising an upper cover and a reaction tube, a thermocouple, an air inlet pipe and an exhaust pipe are inserted into the reaction pipe from the upper cover, the reactor is placed on a support, the support is connected with a first driving mechanism, a supporting table is arranged above the heating furnace body, an electronic scale is placed on the supporting table, a weighing pull rod of the electronic scale is connected with a hanging ring connected to the upper cover, and the supporting table is connected with a second driving mechanism through a supporting arm. The device is convenient to operate, capable of moving and flexible. The device is provided with the electronic scale, and the weightlessness burning loss condition of coke in the reactor can be monitored in the coke heating reaction process, so that the reaction loss condition of the coke quality in the blast furnace is simulated. And blast furnace ironmaking production can be guided.

Description

Technical Field

[0001] The utility model relates to the field of coke thermal reactivity detection, in particular to a device for measuring the coke thermal reactivity. Background Art

[0002] The existing coke thermal reaction device is generally a three-stage heating temperature control device, which is composed of a control system, a flow system, a temperature control system, a heating furnace body, a reactor, a drum and other components. The reaction principle is: a certain mass of coke is weighed, loaded into a reactor, and carbon dioxide is introduced. It reacts at a constant temperature of 1100°C for 2 hours. The percentage of the loss of the reaction to the total weight is called reactivity. The remaining coke is loaded into a type I drum. After 30 minutes and 600 turns of the drum, the percentage of the material above the sieve greater than 10 mm to the total weight after leaving the furnace is called the post-reaction strength. The existing technology can only detect the reactivity and post-reaction strength of coke. It cannot fully reflect the quality of coke, let alone monitor the loss of coke in the blast furnace in real time, so as to make timely measures to adjust, reduce the coke ratio, and increase the iron output of the blast furnace. Summary of the invention

[0003] The technical problem to be solved by the utility model is to provide a device for measuring the thermal reactivity of coke, which can monitor the weight loss of coke in a reactor during the thermal reaction of coke.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A device for measuring the thermal reactivity of coke comprises a base, a heating furnace body is arranged on the base, a furnace cover is connected to the heating furnace body, a reaction port is arranged in the middle of the furnace cover, a reactor is loaded into the heating furnace body from the reaction port, the reactor comprises an upper cover and a reaction tube, a thermocouple, an air inlet pipe and an exhaust pipe are inserted into the reaction tube from the upper cover, the reactor is placed on a bracket, the bracket is connected to a driving mechanism 1, a support platform is arranged above the heating furnace body, an electronic scale is placed on the support platform, a weighing pull rod of the electronic scale is connected to a hanging ring connected to the upper cover, and the support platform is connected to a driving mechanism 2 through a support arm.

[0006] The structure of the driving mechanism 1 is consistent with that of the driving mechanism 2, including a hydraulic cylinder and a top block. The top block includes a bottom plate seat and an upper plate seat. The bottom plate seat is connected to a rotating shaft, which is driven by a worm gear mechanism. The top of the rotating shaft is connected to the upper plate seat.

[0007] The worm gear mechanism is driven by a motor.

[0008] The upper cover is connected to the reaction tube via bolts.

[0009] A through hole is provided in the middle of the support platform for passing the weighing rod.

[0010] The air inlet pipe extends into the bottom of the reaction tube.

[0011] A reactor placement tube is arranged outside the heating furnace body.

[0012] The bottom of the base is provided with rollers.

[0013] The heating furnace body is provided with a plurality of air holes.

[0014] Compared with the existing technology, the beneficial effects of the utility model are:

[0015] The utility model is easy to operate, can be moved, and is flexible. The utility model completes the determination of the thermal reactivity of coke. The device is equipped with an electronic scale, which can monitor the weight loss and burning of coke in the reactor during the coke heating reaction process, and the coke reactivity can be monitored in real time. Thus, the reaction loss of coke quality in the blast furnace is simulated. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the utility model.

[0017] Figure 2 It is a side view of the utility model.

[0018] Figure 3 This is a schematic diagram of the structure of the furnace cover.

[0019] Figure 4 Schematic diagram of the reactor structure.

[0020] In the figure: base 1, heating furnace body 2, furnace body cover 3, reactor 4, upper cover 5, reaction tube 6, thermocouple 7, air inlet pipe 8, exhaust pipe 9, bracket 10, driving mechanism 1 11, support platform 12, electronic scale 13, weighing pull rod 14, hanging ring 15, support arm 16, driving mechanism 2 17, through hole 18, reaction port 19, roller 20, hydraulic cylinder 21, bottom plate seat 22, upper plate seat 23, rotating shaft 24, worm gear mechanism 25, motor 26, reactor placement tube 27, air vent 28. DETAILED DESCRIPTION

[0021] In the description of the present invention, it should be understood that the terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "plurality" means more than two.

[0022] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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 an indirect connection 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 by specific circumstances.

[0023] like Figure 1-Figure 4 A device for measuring the thermal reactivity of coke comprises a base 1, a heating furnace body 2 is arranged on the base 1, a furnace cover 3 is connected to the heating furnace body 2, a reaction port 19 is arranged in the middle of the furnace cover 2, a reactor 4 extends into the heating furnace body 1 from the reaction port 19, the reactor 4 comprises an upper cover 5 and a reaction tube 6, a thermocouple 7, an air inlet pipe 8 and an exhaust pipe 9 are inserted into the reaction tube 6 from the upper cover, the reactor 4 is placed on a bracket 10, the bracket 10 is connected to a driving mechanism 11, a support platform 12 is arranged above the heating furnace body 1, an electronic scale 13 is placed on the support platform 12, a weighing pull rod 14 of the electronic scale 13 is connected to a hanging ring 15 connected to the upper cover 5, and the support platform 12 is connected to a driving mechanism 2 17 through a support arm 16.

[0024] The structure of the driving mechanism 1 11 is consistent with that of the driving mechanism 2 17, including a hydraulic cylinder 21 and a top block, the top block including a bottom plate seat 22 and an upper plate seat 23, the bottom plate seat 22 is connected to a rotating shaft 24, the rotating shaft 24 is driven by a worm gear mechanism 25, and the top of the rotating shaft 24 is connected to the upper plate seat 23. The worm gear mechanism 25 is driven by a motor 26.

[0025] The upper cover 5 is connected to the reaction tube 6 by bolts.

[0026] A through hole 18 is provided in the middle of the support platform 12 for passing the weighing rod 14 .

[0027] The air inlet pipe 8 extends into the bottom of the reaction tube 6 .

[0028] A reactor placement tube 19 is disposed outside the heating furnace body 1 .

[0029] A roller 20 is disposed at the bottom of the base 1 .

[0030] The heating furnace body 1 is provided with a plurality of air holes 28 .

[0031] The coke sample is loaded into the reactor 4, and the reactor 4 is placed on the bracket 10. The driving mechanism 11 drives the bracket 10 to drive the reactor 4 to rise and fall and rotate. The reactor 4 is placed in the reaction port 19 of the heating furnace body. The driving mechanism 2 17 drives the electronic scale 13 to rise and fall and rotate, and drives the weighing pull rod 14 of the electronic scale 13 to be connected with the hanging ring 15 on the upper cover 5. Carbon dioxide is introduced and reacted at a constant temperature of 1100°C for 2 hours. The real-time quality of the reactor filled with coke is reflected in the control system, and the mass loss of coke can be monitored in real time. After the reaction, the electronic scale 13 first descends and then rotates horizontally, and the weighing pull rod 14 is disconnected from the hanging ring 15. After the reaction, the reactor 4 is lifted from the furnace body 1, and then the motor 26 drives the worm and worm gear, and the driving shaft 24 drives the reactor 4 to rotate horizontally, and the reactor 4 is finally placed in the reactor placement tube 19.

[0032] In order to make the purpose, technical scheme and technical effect of the utility model clearer, the technical scheme in the embodiment of the utility model is now described clearly and completely. However, the embodiment described below is only a part of the embodiment of the utility model, not all of the embodiments. In combination with the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] Example

[0034] A device for measuring the thermal reactivity of coke comprises a base 1, a heating furnace body 2 is arranged on the base 1, a furnace cover 3 is connected to the heating furnace body 2, a reaction port 19 is arranged in the middle of the furnace cover 2, a reactor 4 extends into the heating furnace body 1 from the reaction port 19, the reactor 4 comprises an upper cover 5 and a reaction tube 6, and the upper cover 5 is connected to the reaction tube 6 by bolts. A thermocouple 7, an air inlet pipe 8 and an exhaust pipe 9 are inserted into the reaction tube 6 from the upper cover, and the air inlet pipe 8 extends into the bottom of the reaction tube 6. A hanging ring 15 is connected to the upper cover 5. A seat ring is arranged on the bracket 10, and the reactor 4 is placed in the seat ring of the bracket 10, and the other end of the bracket 10 is connected to a driving mechanism 11.

[0035] A support platform 12 is provided above the heating furnace body 1, an electronic scale 13 is placed on the support platform 12, a through hole 18 is provided in the middle of the support platform 12 for passing a weighing rod 14, and the weighing rod 14 of the electronic scale 13 is connected to a hanging ring 15 on the upper cover 5. The support platform 12 is connected to a driving mechanism 2 17 through a support arm 16.

[0036] The structure of the driving mechanism 11 is consistent with that of the driving mechanism 2 17, including a hydraulic cylinder 21 and a top block, the top block including a bottom plate seat 22 and an upper plate seat 23, the bottom plate seat 22 is connected to a rotating shaft 24, the rotating shaft 24 is driven by a worm gear mechanism 25, and the worm gear mechanism 25 is driven by a motor 26. The top of the rotating shaft 24 is connected to the upper plate seat 23. The upper plate seat 23 of the driving mechanism 11 is connected to the bracket 10. The upper plate seat 23 of the driving mechanism 2 17 is connected to the support arm 16.

[0037] A plurality of air holes 28 are arranged on the outer periphery of the top of the heating furnace body 1. A reactor placement cylinder 19 is arranged outside the heating furnace body 1. A roller 20 is arranged at the bottom of the base 1.

[0038] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and basic spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for measuring the thermal reactivity of coke, characterized in that: It includes a base, a heating furnace body is arranged on the base, a furnace body cover is connected to the heating furnace body, a reaction port is arranged in the middle of the furnace body cover, a reactor is loaded into the heating furnace body from the reaction port, the reactor includes an upper cover and a reaction tube, a thermocouple, an air inlet pipe and an exhaust pipe are inserted into the reaction tube from the upper cover, the reactor is placed on a bracket, the bracket is connected to a driving mechanism 1, a support platform is arranged above the heating furnace body, an electronic scale is placed on the support platform, a weighing pull rod of the electronic scale is connected to a hanging ring connected to the upper cover, and the support platform is connected to a driving mechanism 2 through a support arm.

2. The device for measuring the thermal reactivity of coke according to claim 1, characterized in that: The structure of the driving mechanism 1 is consistent with that of the driving mechanism 2, including a hydraulic cylinder and a top block. The top block includes a bottom plate seat and an upper plate seat. The bottom plate seat is connected to a rotating shaft, which is driven by a worm gear mechanism. The top of the rotating shaft is connected to the upper plate seat.

3. A device for measuring the thermal reactivity of coke according to claim 2, characterized in that: The worm gear mechanism is driven by a motor.

4. The device for measuring the thermal reactivity of coke according to claim 1, characterized in that: The upper cover is connected to the reaction tube via bolts.

5. The device for measuring the thermal reactivity of coke according to claim 1, characterized in that: A through hole is provided in the middle of the support platform for passing the weighing rod.

6. The device for measuring the thermal reactivity of coke according to claim 1, characterized in that: The air inlet pipe extends into the bottom of the reaction tube.

7. The device for measuring the thermal reactivity of coke according to claim 1, characterized in that: A reactor placement tube is arranged outside the heating furnace body.

8. The device for measuring the thermal reactivity of coke according to claim 1, characterized in that: The bottom of the base is provided with rollers.

9. The device for measuring the thermal reactivity of coke according to claim 1, characterized in that: The heating furnace body is provided with a plurality of air holes.

Images