Abstract: The present disclosure relates to the technical field of pyrolysis and improvement of caking middling coals, in particular to a low temperature pyrolysis method of a caking middling coal. The present disclosure provides a low temperature pyrolysis method of a caking middling coal, including the following steps: conveying the caking middling coal into a pyrolysis reactor through a top of the pyrolysis reactor; dividing a reaction chamber of the pyrolysis reactor into a drying section, a softening section, a melting and depolymerization section, a solidification section, and a cooling section by means of multi-channel gas distribution; and conducting zoned temperature control-based pyrolysis to obtain semi-coke at a bottom of the reactor as well as tar and coal gas at the top of the reactor. The pyrolysis method can well avoid caking and swelling of the caking middling coal during pyrolysis.

Abstract: The present disclosure relates to the technical field of pyrolysis and improvement of caking middling coals, in particular to a low temperature pyrolysis method of a caking middling coal. The present disclosure provides a low temperature pyrolysis method of a caking middling coal, including the following steps: conveying the caking middling coal into a pyrolysis reactor through a top of the pyrolysis reactor; dividing a reaction chamber of the pyrolysis reactor into a drying section, a softening section, a melting and depolymerization section, a solidification section, and a cooling section by means of multi-channel gas distribution; and conducting zoned temperature control-based pyrolysis to obtain semi-coke at a bottom of the reactor as well as tar and coal gas at the top of the reactor. The pyrolysis method can well avoid caking and swelling of the caking middling coal during pyrolysis.

Abstract: A cab frame includes a support framework, where the support framework includes a bottom frame, a top frame, and a four-upright-column structure supported between the bottom frame and the top frame; the four-upright-column structure includes two front upright columns and two rear upright columns, and an inner dimension of the cab frame increases along the bottom-to-top direction.

Abstract: The present invention relates to a glass ceramic material comprising a core-rim structure, wherein the core-rim structure comprises an amorphous SiO2 matrix, ZrO2 crystals, and hardness-enhancing additive, the ZrO2 crystals are present in cores that are at least partly surrounded by a rim comprising hardness-enhancing additive.

Abstract: The present invention provides a material composition and a process of producing translucent ZrO2—SiO2 nanocrystalline glass ceramic (NCGC) with ultra-high flexural strength. The method comprises the following step: (1) prepare homogenous ZrO2-SiO2 nano-sized powder with high purity via a sol-gel method; (2) pressure assisted sintering of ZrO2-SiO2 nano-sized sol-gel powder to obtain translucent ZrO2-SiO2 NCGC. The invention also includes materials manufactured using the method.

Abstract: The present invention belongs to the field of medicine and relates to a pharmaceutical composition for preventing and treating NITM and a medical use thereof. Specifically, the pharmaceutical composition is an ophthalmic pharmaceutical composition such as an ophthalmic preparation. Specifically, the present invention relates to a pharmaceutical composition comprising 0.001% to 0.2% of atropine or a pharmaceutically acceptable salt thereof, and one or more pharmaceutically acceptable excipients; wherein the pH value of the pharmaceutical composition is of 4.0 to 6.5; the pharmaceutical composition comprises 0.5% to 5% of a pH adjusting agent, and the pH adjusting agent is any one or more selected from sodium dihydrogen phosphate, disodium hydrogen phosphate, citric acid, citrate, boric acid and borates. The pharmaceutical composition of the present invention can effectively treat and/or prevent NITM, and thus has a good application prospect.

Abstract: The present invention provides a material composition and a process of producing translucent ZrO2—SiO2nanocrystalline glass ceramic (NCGC) with ultra-high flexural strength. The method comprises the following step: (1) prepare homogenous ZrO2-SiO2 nano-sized powder with high purity via a sol-gel method; (2) pressure assisted sintering of ZrO2-SiO2 nano-sized sol-gel powder to obtain translucent ZrO2-SiO2 NCGC. The invention also includes materials manufactured using the method.