Stone and coal feeding and mixing structure for kiln

Abstract

The utility model relates to a stone and coal feeding and mixing structure for a kiln, and belongs to the technical field of kiln feeding. The coal metering hopper is fixedly connected to the frame body of the belt conveyor; the stone metering hopper is fixedly connected to the frame body of the belt conveyor and located on the side, close to the conveying tail end, of the coal metering hopper. The number of the tension type weighing sensors is two, one group of the tension type weighing sensors is installed between the belt conveyor and the coal metering hopper, and the tension type weighing sensors are used for weighing the coal metering hopper; the other group of the weighing device is arranged between the belt conveyor and the stone metering hopper and is used for weighing the stone metering hopper; one group of the opening and closing assemblies is used for opening and closing the coal metering hopper, and the other group of the opening and closing assemblies is used for opening and closing the stone metering hopper. The method has the beneficial effect of reducing the production cost.

Description

Technical Field

[0001] This application relates to the technical field of charging for kilns, and particularly to a charging and mixing structure for stones and coal used in a kiln. Background Art

[0002] In the related art, when charging stones and coal into a kiln, it is necessary to first weigh the stones. After the stones are fed, the coal is weighed, and then the coal is fed. In actual production, it is found that through this charging and mixing method, in most cases, the mixing ratio of stones and coal is uneven, and the consumption of coal will increase, resulting in easy coking of the materials in the sintering process and greatly increasing the production cost. Summary of the Utility Model

[0003] In order to reduce the production cost, this application provides a charging and mixing structure for stones and coal used in a kiln, and adopts the following technical solutions:

[0004] A charging and mixing structure for stones and coal used in a kiln, comprising:

[0005] A belt conveyor;

[0006] A coal metering hopper, fixedly connected to the frame of the belt conveyor;

[0007] A stone metering hopper, fixedly connected to the frame of the belt conveyor and located on the side of the coal metering hopper close to the transmission end;

[0008] Two sets of tension-type weighing sensors, one set is installed between the belt conveyor and the coal metering hopper for weighing the coal metering hopper; the other set is installed between the belt conveyor and the stone metering hopper for weighing the stone metering hopper;

[0009] Two sets of opening and closing assemblies, one set is used to open and close the coal metering hopper, and the other set is used to open and close the stone metering hopper.

[0010] By adopting the above technical solutions, during weighing, the coal and stones can be weighed separately at the same time. When the coal reaches the set value, the coal falls onto the belt conveyor. After the stones reach the set value, the belt conveyor is started to transport the coal. As the coal is transported, the stones are mixed with the coal, so that the coal and stones can be mixed as evenly as possible, making the materials not easy to coke and reducing the production cost.

[0011] Optionally, the opening and closing assembly includes:

[0012] An opening and closing plate, vertically and slidably connected to the coal metering hopper or the stone metering hopper;

[0013] The driving cylinder has its cylinder body mounted on the coal weighing hopper or the stone weighing hopper, and the piston rod is fixedly connected to the opening and closing plate.

[0014] Optionally, the opening and closing assembly further includes:

[0015] A material guiding plate is mounted on the coal weighing hopper or the stone weighing hopper, and one end thereof communicates with the coal weighing hopper or the stone weighing hopper.

[0016] By adopting the above technical solution, after the opening and closing plate is opened, coal or stones are introduced onto the belt conveyor through the material guiding plate.

[0017] Optionally, the mixing structure further includes:

[0018] A magnetic separation assembly is mounted at the inlet of the stone weighing hopper for removing iron impurities in the stones;

[0019] A dust removal assembly is mounted on the stone weighing hopper and is located on the side of the magnetic separation assembly close to the belt conveyor for dust removal treatment of the stones.

[0020] By adopting the above technical solution, the purity of the stones can be improved and the dust attached to the surface of the stones can be reduced.

[0021] Optionally, the magnetic separation assembly includes:

[0022] A magnetic separation frame is mounted on the stone weighing hopper;

[0023] A magnetic separation cylinder is horizontally rotatably connected to the magnetic separation frame through a rotating shaft, and is provided with a feed inlet and is internally provided with magnetic blocks;

[0024] A driving component is mounted on the magnetic separation frame for driving the rotation of the magnetic separation cylinder.

[0025] By adopting the above technical solution, after the stones enter the magnetic separation cylinder, the driving component is started, and the driving component drives the rotation of the magnetic separation cylinder, so that the stones enter the stone weighing hopper through the feed inlet, and magnetic separation is performed on the stones during the rotation of the magnetic separation cylinder.

[0026] Optionally, the driving component includes:

[0027] A driving motor is mounted on the magnetic separation frame, and a driving main gear is coaxially and fixedly connected to the output shaft;

[0028] A driving driven gear is coaxially and fixedly connected to one end of the rotating shaft and meshes with the driving main gear.

[0029] Optionally, the dust removal assembly includes:

[0030] A cleaning cylinder is mounted on the stone weighing hopper; the cleaning cylinder is provided with an inlet and an outlet;

[0031] The rotating inner cylinder is rotatably connected inside the cleaning cylinder and is communicated with an inlet pipe. The inlet pipe abuts against the inner wall of the cleaning cylinder and can be communicated with the inlet and outlet of the cleaning cylinder.

[0032] The cleaning and drying component is installed on the cleaning cylinder and is used for cleaning and drying the stones.

[0033] The rotating component is installed on the cleaning cylinder and is used for driving the rotation of the rotating inner cylinder.

[0034] By adopting the above technical solution, after the stones enter the rotating inner cylinder, the rotating component drives the rotating inner cylinder to rotate, and the cleaning and drying component cleans and dries the stones.

[0035] Optionally, the rotating component includes:

[0036] The rotating shaft is fixedly connected to one end of the rotating inner cylinder and rotatably connected to the other end of the cleaning cylinder.

[0037] The rotating motor is installed on the outer wall of the cleaning cylinder, and the output shaft is coaxially and fixedly connected with a rotating main gear.

[0038] The rotating driven gear is coaxially and fixedly connected to the rotating shaft and meshes with the rotating main gear.

[0039] Optionally, the cleaning and drying component includes:

[0040] The rotary joint is installed on the rotating shaft and is communicated with the rotating shaft. The rotating shaft is uniformly provided with water outlet holes along the axis.

[0041] The stirring blades are coaxially and fixedly connected to the rotating shaft.

[0042] The auxiliary box is installed on the outer wall of the cleaning cylinder and is provided with a cavity and an inlet.

[0043] The auxiliary pipe is installed in the cavity to divide the cavity into a water collecting cavity and a blanking cavity. The auxiliary pipe is communicated with the inlet of the auxiliary box.

[0044] The filter plate is obliquely and fixedly connected inside the auxiliary pipe. The auxiliary pipe is provided with a discharge port and a water outlet. The discharge port is communicated with the blanking cavity. The water outlet is communicated with the water collecting cavity.

[0045] The hot air pipe is communicated with the blanking cavity and is used for providing hot air.

[0046] By adopting the above technical solution, after the stones enter the rotating inner cylinder, the stirring blades agitate the stones, the water outlet holes clean the stones, the cleaned stones fall onto the filter plate, and the waste water passes through the filter plate and enters the water collecting cavity through the water outlet; the stones fall into the blanking cavity through the discharge port, and the hot air pipe supplies hot air to the blanking cavity to dry the stones.

[0047] In summary, the present application has at least the following beneficial effects:

[0048] 1. The purpose of setting the belt conveyor, coal metering hopper, stone metering hopper and tension type weighing sensor is that when weighing, the coal and stones can be weighed separately at the same time. After the coal reaches the set value, the coal falls onto the belt conveyor. After the stones reach the set value, the belt conveyor is started to transport the coal. As the coal is transported, the stones are mixed with the coal, so that the coal and stones can be mixed as evenly as possible, making the material not easy to coke and reducing the production cost.

[0049] 2. The purpose of setting the magnetic separation component and the dust reduction component is to improve the purity of the stones and reduce the dust attached to the surface of the stones. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] Figure 1 is a schematic diagram of the overall structure of an embodiment of the present application;

[0051] Figure 2 is a schematic diagram of the overall structure of the stone metering hopper in another embodiment of the present application;

[0052] Figure 3 is a schematic diagram of the overall structure of the magnetic separation component and the dust removal component;

[0053] Figure 4 is a schematic cross-sectional structure diagram of the connection relationship between the cleaning cylinder, the rotating inner cylinder and the auxiliary box.

[0054] Description of reference numerals: 100, belt conveyor; 200, coal metering hopper; 300, stone metering hopper; 400, tension type weighing sensor; 500, opening and closing assembly; 510, opening and closing plate; 520, driving cylinder; 530, material guiding plate; 600, magnetic separation assembly; 610, magnetic separation frame; 620, magnetic separation cylinder; 630, driving component; 631, driving motor; 632, driving main gear; 633, driving driven gear; 640, discharge sealing plate; 650, discharge cylinder; 700, dust removal assembly; 710, cleaning cylinder; 720, rotating inner cylinder; 721, inlet pipe; 730, cleaning and drying component; 732, rotary joint; 733, stirring blade; 734, auxiliary tank; 735, filter plate; 736, hot air pipe; 737, return water pipe; 738, auxiliary pipe; 739, water collecting cavity; 740, rotating component; 741, rotating motor; 742, rotating main gear; 743, rotating driven gear; 744, rotating shaft; 751, blanking cavity; 752, discharge port; 753, water outlet; 754, extension plate. Detailed implementation manners

[0055] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying Figure 1 - accompanying Figure 4 , and the technical solutions in the embodiments of the present utility model will be clearly and completely described. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0056] The embodiments of the present application disclose a feeding and mixing structure for stones and coal in a kiln. Referring to Figure 1 , as an implementation manner of the feeding and mixing structure, the feeding and mixing structure may include a belt conveyor 100, a coal metering hopper 200, a stone metering hopper 300, a tension type weighing sensor 400, and an opening and closing assembly 500. Among them, both the coal metering hopper 200 and the stone metering hopper 300 are welded to the frame of the belt conveyor 100, and the stone metering hopper 300 is located on the side of the coal metering hopper 200 close to the transmission end. There are two groups of tension type weighing sensors 400, with four in each group; one group corresponds to the coal metering hopper 200, and the other group corresponds to the stone metering hopper 300. Taking the group of tension type weighing sensors 400 corresponding to the coal metering hopper 200 as an example; the four tension type weighing sensors 400 in this group are connected to the frame of the belt conveyor 100 at one end and to the coal metering hopper 200 at the other end, and are used to weigh the coal. There are two groups of opening and closing assemblies 500, one group is used to open and close the coal metering hopper 200, and the other group is used to open and close the stone metering hopper 300.

[0057] Taking the opening and closing assembly 500 corresponding to the coal metering hopper 200 as an example: The opening and closing assembly 500 may include an opening and closing plate 510, a driving cylinder 520, and a material guiding plate 530. Among them, the material guiding plate 530 is obliquely welded to the coal metering hopper 200, and the inclined end is close to the belt conveyor 100. The opening and closing plate 510 is vertically slidably connected to the coal metering hopper 200, and the cylinder body of the driving cylinder 520 is vertically installed on the outer wall of the coal metering hopper 200 through bolts, and the piston rod is fixedly connected to the opening and closing plate 510.

[0058] Referring to Figure 2 and Figure 3 As another embodiment of the feeding and mixing structure, the feeding and mixing structure may include a magnetic separation assembly 600 and a dust removal assembly 700. Among them, the magnetic separation assembly 600 is installed at the entrance of the stone metering hopper 300 to remove iron impurities in the stones; the dust removal assembly 700 is installed on the stone metering hopper 300 and is located on the side of the magnetic separation assembly 600 close to the belt conveyor 100 to perform dust removal treatment on the stones.

[0059] The magnetic separation assembly 600 may include a magnetic separation frame 610, a magnetic separation cylinder 620, and a driving component 630. Among them, the magnetic separation frame 610 is installed on the stone metering hopper 300 through bolts; the magnetic separation cylinder 620 is horizontally rotatably connected to the magnetic separation frame 610 through a rotating shaft. The magnetic separation cylinder 620 is provided with a feeding port, and a plurality of magnetic blocks are arranged inside the magnetic separation cylinder 620. The driving component 630 is installed on the magnetic separation frame 610 to drive the rotation of the magnetic separation cylinder 620.

[0060] The driving component 630 may include a driving motor 631, a driving main gear 632, and a driving driven gear 633. Among them, the driving motor 631 is installed on the magnetic separation frame 610 through bolts, and the output shaft is coaxially and fixedly connected to the driving main gear 632; the driving driven gear 633 is coaxially and fixedly connected to one end of the rotating shaft and meshes with the driving main gear 632.

[0061] In addition, the magnetic separation assembly 600 may further include a discharge sealing plate 640 and a discharge cylinder 650; among them, the discharge sealing plate 640 is horizontally slidably connected to the magnetic separation cylinder 620, and the cylinder body of the discharge cylinder 650 is fixedly connected to the magnetic separation cylinder 620, and the discharge sealing plate 640 is fixedly connected to the piston rod of the discharge cylinder 650.

[0062] Referring to Figure 3 and Figure 4, the dust removal assembly 700 may include a cleaning cylinder 710, a rotating inner cylinder 720, a cleaning and drying component 730, and a rotating component 740. Among them, the cleaning cylinder 710 is installed on the stone metering hopper 300 by bolts and is provided with an inlet and an outlet. The rotating inner cylinder 720 is rotatably connected inside the cleaning cylinder 710 and is communicated with an inlet pipe 721. The inlet pipe 721 abuts against the inner wall of the cleaning cylinder 710 and is communicated with the inlet and outlet of the cleaning cylinder 710. The cleaning and drying component 730 is installed in the cleaning cylinder 710 for cleaning and drying stones; the rotating component 740 is installed on the cleaning cylinder 710 for driving the rotation of the rotating inner cylinder 720.

[0063] The rotating component 740 may include a rotating motor 741, a rotating main gear 742, a rotating driven gear 743, and a rotating shaft 744. Among them, the rotating motor 741 is installed on the outer wall of the cleaning cylinder 710 by bolts, and the rotating main gear 742 is coaxially and fixedly connected to the output shaft of the rotating motor 741. The rotating driven gear 743 is coaxially and fixedly connected to the rotating shaft 744 and meshes with the rotating main gear 742. The rotating shaft 744 is fixedly connected to the rotating inner cylinder 720 and is rotatably connected to the cleaning cylinder 710. The magnetic separation frame 610 is fixedly connected to the outer wall of the cleaning cylinder 710.

[0064] The cleaning and drying component 730 may include a rotary joint 732, stirring blades 733, an auxiliary box 734, a filter plate 735, a hot air pipe 736, a return water pipe 737, and an auxiliary pipe 738.

[0065] Among them, the rotary joint 732 is installed on the rotating shaft 744, is communicated with an external water supply structure and is communicated with the rotating shaft 744. The rotating shaft 744 is provided with water outlet holes along the axis. The stirring blades 733 are installed on the rotating shaft 744 at intervals along the axis of the rotating shaft 744.

[0066] The auxiliary box 734 is provided with a cavity inside and is provided with an inlet. The inlet is communicated with one end of the auxiliary pipe 738 and the outlet of the cleaning cylinder 710. The auxiliary pipe 738 is fixedly connected inside the cavity; and divides the cavity into a water collecting cavity 739 and a blanking cavity 751. The filter plate 735 is fixedly connected obliquely in the auxiliary pipe 738, and the auxiliary pipe 738 is provided with a discharge port 752 and a water outlet 753. The water outlet 753 is communicated with the water collecting cavity 739, and the discharge port 752 is communicated with the blanking cavity 751. One end of the return water pipe 737 is communicated with the water collecting cavity 739, and the other end is communicated with a structure for collecting waste water outside. One end of the hot air pipe 736 is communicated with the blanking cavity 751, and the other end is communicated with a structure for providing hot air. The blanking cavity 751 is communicated with the stone metering hopper 300.

[0067] It should also be noted that, in order to extend the drying time of the stones, a plurality of extension plates 754 are installed in the blanking cavity 751, and the included angle between adjacent extension plates 754 is an acute angle.

[0068] The implementation principle of this embodiment is as follows:

[0069] During feeding, coal and stones enter the coal weighing hopper 200 and the stone weighing hopper 300 respectively for weighing. After the coal reaches the set weight value and the stones reach the set weight value, the corresponding driving cylinder 520 contracts to drive the opening and closing plate 510 to open the coal weighing hopper 200, and the coal falls onto the belt conveyor 100 through the material guiding plate 530. Then, the belt conveyor 100 is started. When the coal is conveyed to the stone weighing hopper 300, the driving cylinder 520 corresponding to the stone weighing hopper 300 contracts to drive the opening and closing plate 510 to open the stone weighing hopper 300, and the stones fall onto the belt conveyor 100 through the material guiding plate 530. As the coal is transported, the stones are mixed with the coal.

[0070] When the stones are fed into the stone weighing hopper 300, the magnetic separation assembly 600 and the dust removal assembly 700 perform magnetic separation and dust removal on the stones respectively.

[0071] The above are all the preferred embodiments of this application, which do not limit the protection scope of this application in sequence. Any feature disclosed in this specification (including the abstract and drawings), unless specifically described, can be replaced by other equivalent or similar-purpose alternative features. That is, unless specifically described, each feature is only an example of a series of equivalent or similar features.

Claims

1. A mixing structure for feeding stones and coal into a kiln, characterized in that: include: Belt conveyor (100); A coal weighing bucket (200) is fixedly connected to the frame of the belt conveyor (100); A gravel weighing bucket (300) is fixedly connected to the frame of the belt conveyor (100) and is located on a side of the coal weighing bucket (200) close to the transmission end; Two groups of tension type weighing sensors (400) are provided, one group is installed between the belt conveyor (100) and the coal weighing bucket (200) for weighing the coal weighing bucket (200); the other group is installed between the belt conveyor (100) and the gravel weighing bucket (300) for weighing the gravel weighing bucket (300); The opening and closing components (500) are provided with two groups, one group is used for opening and closing the coal weighing bucket (200), and the other group is used for opening and closing the stone weighing bucket (300).

2. The stone and coal feeding mixing structure for a kiln according to claim 1 is characterized in that: The opening and closing assembly (500) comprises: An opening and closing plate (510) is vertically slidably connected to the coal weighing bucket (200) or the gravel weighing bucket (300); A driving cylinder (520) has a cylinder body mounted on the coal weighing bucket (200) or the gravel weighing bucket (300), and a piston rod fixedly connected to the opening and closing plate (510).

3. The stone and coal feeding mixing structure for a kiln according to claim 2 is characterized in that: The opening and closing assembly (500) further comprises: The guide plate (530) is installed on the coal measuring hopper (200) or the stone measuring hopper (300), and one end of the guide plate is connected to the coal measuring hopper (200) or the stone measuring hopper (300).

4. The stone and coal feeding mixing structure for a kiln according to claim 1 is characterized in that: The hybrid structure also includes: A magnetic separation component (600) is installed at the entrance of the stone weighing hopper (300) and is used to remove iron impurities in the stones; The dust removal component (700) is installed on the stone weighing bucket (300) and is located on the side of the magnetic separation component (600) close to the belt conveyor (100) for performing dust removal on the stones.

5. The stone and coal feeding mixing structure for a kiln according to claim 4 is characterized in that: The magnetic separation assembly (600) comprises: A magnetic separation frame (610) is installed on the stone weighing bucket (300); The magnetic separation cylinder (620) is horizontally rotatably connected to the magnetic separation frame (610) via a rotating shaft, and is provided with a feed port and a magnetic block inside; A driving component (630) is installed on the magnetic separation frame (610) and is used to drive the magnetic separation cylinder (620) to rotate.

6. The stone and coal feeding mixing structure for a kiln according to claim 5 is characterized in that: The driving component (630) comprises: A driving motor (631) is mounted on the magnetic separation frame (610), and an output shaft is coaxially fixedly connected to a driving main gear (632); The driving slave gear (633) is coaxially fixedly connected to one end of the rotating shaft and meshes with the driving master gear (632).

7. The stone and coal feeding mixing structure for a kiln according to claim 4 is characterized in that: The dust removal assembly (700) comprises: A cleaning cylinder (710) is installed on the stone weighing bucket (300); the cleaning cylinder (710) is provided with an inlet and an outlet; The inner cylinder (720) is rotated to be connected to the cleaning cylinder (710) and is connected to an inlet pipe (721). The inlet pipe (721) abuts against the inner wall of the cleaning cylinder (710) and can be connected to the inlet and outlet of the cleaning cylinder (710); A cleaning and drying component (730) is installed on the cleaning cylinder (710) and is used for cleaning and drying stones; The rotating component (740) is installed on the cleaning cylinder (710) and is used to drive the rotating inner cylinder (720) to rotate.

8. The stone and coal feeding mixing structure for a kiln according to claim 7 is characterized in that: The rotating component (740) comprises: A rotating shaft (744), one end of which is fixedly connected to the rotating inner cylinder (720) and the other end of which is rotatably connected to the cleaning cylinder (710); A rotating motor (741) is mounted on the outer wall of the cleaning cylinder (710), and the output shaft is coaxially fixedly connected with a rotating main gear (742); The rotating slave gear (743) is coaxially fixedly connected to the rotating shaft (744) and meshes with the rotating master gear (742).

9. The stone and coal feeding mixing structure for a kiln according to claim 8, characterized in that: The cleaning and drying component (730) comprises: The rotary joint (732) is mounted on the rotating shaft (744) and is in communication with the rotating shaft (744); the rotating shaft (744) is provided with water outlet holes evenly arranged along the axis thereof; A stirring blade (733) is coaxially fixedly connected to the rotating shaft (744); An auxiliary box (734) is mounted on the outer wall of the cleaning cylinder (710) and is provided with a cavity and an inlet; An auxiliary pipe (738) is installed in the cavity to separate the cavity into a water collecting chamber (739) and a material dropping chamber (751); the auxiliary pipe (738) is connected to the inlet of the auxiliary box (734); The filter plate (735) is connected to the auxiliary pipe (738) in an inclined and fixed manner. The auxiliary pipe (738) is provided with a discharge port (752) and a water outlet (753). The discharge port (752) is communicated with the material cavity (751); the water outlet (753) is communicated with the water collecting cavity (739). The hot air pipe (736) is connected to the blanking cavity (751) and is used to provide hot air.

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